Home / 427,874,565.44-642,178,331.04-424,653,901.76

Finding the Fourth Proportional to 427,874,565.44, 642,178,331.04 and 424,653,901.76

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Solution

The fourth proportional to 427,874,565.44, 642,178,331.04 and 424,653,901.76 is: 637,344,576.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,874,565.44 : 642,178,331.04 = 424,653,901.76 : x
  2. Step 2: Convert to fraction form
    427,874,565.44/642,178,331.04 = 424,653,901.76/x
  3. Step 3: Cross multiply
    427,874,565.44x = 642,178,331.04 × 424,653,901.76
  4. Step 4: Simplify right side
    427,874,565.44x = 272,703,533,901,860,896
  5. Step 5: Solve for x
    x = 272,703,533,901,860,896/427,874,565.44
  6. Step 6: Final answer
    x = 637,344,576.96

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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.