Home / 929,100,557.80-1,393,650,836.70-515,852,036.20

Finding the Fourth Proportional to 929,100,557.80, 1,393,650,836.70 and 515,852,036.20

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Solution

The fourth proportional to 929,100,557.80, 1,393,650,836.70 and 515,852,036.20 is: 773,778,054.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,100,557.80 : 1,393,650,836.70 = 515,852,036.20 : x
  2. Step 2: Convert to fraction form
    929,100,557.80/1,393,650,836.70 = 515,852,036.20/x
  3. Step 3: Cross multiply
    929,100,557.80x = 1,393,650,836.70 × 515,852,036.20
  4. Step 4: Simplify right side
    929,100,557.80x = 718,917,621,863,528,704
  5. Step 5: Solve for x
    x = 718,917,621,863,528,704/929,100,557.80
  6. Step 6: Final answer
    x = 773,778,054.30

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Double scale
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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.