Home / 15,306,742.61-21,123,123.78-8,337,398.27

Finding the Fourth Proportional to 15,306,742.61, 21,123,123.78 and 8,337,398.27

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Solution

The fourth proportional to 15,306,742.61, 21,123,123.78 and 8,337,398.27 is: 11,505,511.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,306,742.61 : 21,123,123.78 = 8,337,398.27 : x
  2. Step 2: Convert to fraction form
    15,306,742.61/21,123,123.78 = 8,337,398.27/x
  3. Step 3: Cross multiply
    15,306,742.61x = 21,123,123.78 × 8,337,398.27
  4. Step 4: Simplify right side
    15,306,742.61x = 176,111,895,621,979.41
  5. Step 5: Solve for x
    x = 176,111,895,621,979.41/15,306,742.61
  6. Step 6: Final answer
    x = 11,505,511.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.