Home / 12,288,547.40-18,432,821.10-3,768,816.20

Finding the Fourth Proportional to 12,288,547.40, 18,432,821.10 and 3,768,816.20

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Solution

The fourth proportional to 12,288,547.40, 18,432,821.10 and 3,768,816.20 is: 5,653,224.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288,547.40 : 18,432,821.10 = 3,768,816.20 : x
  2. Step 2: Convert to fraction form
    12,288,547.40/18,432,821.10 = 3,768,816.20/x
  3. Step 3: Cross multiply
    12,288,547.40x = 18,432,821.10 × 3,768,816.20
  4. Step 4: Simplify right side
    12,288,547.40x = 69,469,914,773,381.83
  5. Step 5: Solve for x
    x = 69,469,914,773,381.83/12,288,547.40
  6. Step 6: Final answer
    x = 5,653,224.30

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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.