Home / 10,866,347.40-16,299,521.10-8,155,998.30

Finding the Fourth Proportional to 10,866,347.40, 16,299,521.10 and 8,155,998.30

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Solution

The fourth proportional to 10,866,347.40, 16,299,521.10 and 8,155,998.30 is: 12,233,997.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,866,347.40 : 16,299,521.10 = 8,155,998.30 : x
  2. Step 2: Convert to fraction form
    10,866,347.40/16,299,521.10 = 8,155,998.30/x
  3. Step 3: Cross multiply
    10,866,347.40x = 16,299,521.10 × 8,155,998.30
  4. Step 4: Simplify right side
    10,866,347.40x = 132,938,866,382,414.12
  5. Step 5: Solve for x
    x = 132,938,866,382,414.12/10,866,347.40
  6. Step 6: Final answer
    x = 12,233,997.45

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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.