Home / 27,998,123.72-38,636,564.70-15,439,171.64

Finding the Fourth Proportional to 27,998,123.72, 38,636,564.70 and 15,439,171.64

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Solution

The fourth proportional to 27,998,123.72, 38,636,564.70 and 15,439,171.64 is: 21,305,590.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,998,123.72 : 38,636,564.70 = 15,439,171.64 : x
  2. Step 2: Convert to fraction form
    27,998,123.72/38,636,564.70 = 15,439,171.64/x
  3. Step 3: Cross multiply
    27,998,123.72x = 38,636,564.70 × 15,439,171.64
  4. Step 4: Simplify right side
    27,998,123.72x = 596,516,553,790,082.38
  5. Step 5: Solve for x
    x = 596,516,553,790,082.38/27,998,123.72
  6. Step 6: Final answer
    x = 21,305,590.33

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1.5x scale

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.