Home / 1,251,127,852.20-1,876,691,778.30-432,968,236.20

Finding the Fourth Proportional to 1,251,127,852.20, 1,876,691,778.30 and 432,968,236.20

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Solution

The fourth proportional to 1,251,127,852.20, 1,876,691,778.30 and 432,968,236.20 is: 649,452,354.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,127,852.20 : 1,876,691,778.30 = 432,968,236.20 : x
  2. Step 2: Convert to fraction form
    1,251,127,852.20/1,876,691,778.30 = 432,968,236.20/x
  3. Step 3: Cross multiply
    1,251,127,852.20x = 1,876,691,778.30 × 432,968,236.20
  4. Step 4: Simplify right side
    1,251,127,852.20x = 812,547,929,141,592,448
  5. Step 5: Solve for x
    x = 812,547,929,141,592,448/1,251,127,852.20
  6. Step 6: Final answer
    x = 649,452,354.30

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Half scale
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Double scale
Find fourth proportional to 1,251,127,853.20, 1,876,691,779.80 and 432,968,237.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.