Home / 28,129,637.40-42,194,456.10-13,761,922.20

Finding the Fourth Proportional to 28,129,637.40, 42,194,456.10 and 13,761,922.20

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Solution

The fourth proportional to 28,129,637.40, 42,194,456.10 and 13,761,922.20 is: 20,642,883.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,129,637.40 : 42,194,456.10 = 13,761,922.20 : x
  2. Step 2: Convert to fraction form
    28,129,637.40/42,194,456.10 = 13,761,922.20/x
  3. Step 3: Cross multiply
    28,129,637.40x = 42,194,456.10 × 13,761,922.20
  4. Step 4: Simplify right side
    28,129,637.40x = 580,676,822,119,515.38
  5. Step 5: Solve for x
    x = 580,676,822,119,515.38/28,129,637.40
  6. Step 6: Final answer
    x = 20,642,883.30

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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.