Home / 27,998,124.72-38,636,566.08-15,439,172.64

Finding the Fourth Proportional to 27,998,124.72, 38,636,566.08 and 15,439,172.64

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Solution

The fourth proportional to 27,998,124.72, 38,636,566.08 and 15,439,172.64 is: 21,305,591.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,998,124.72 : 38,636,566.08 = 15,439,172.64 : x
  2. Step 2: Convert to fraction form
    27,998,124.72/38,636,566.08 = 15,439,172.64/x
  3. Step 3: Cross multiply
    27,998,124.72x = 38,636,566.08 × 15,439,172.64
  4. Step 4: Simplify right side
    27,998,124.72x = 596,516,613,925,888
  5. Step 5: Solve for x
    x = 596,516,613,925,888/27,998,124.72
  6. Step 6: Final answer
    x = 21,305,591.71

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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.