Home / 77,044,152.72-115,564,609.96-18,752,155.92

Finding the Fourth Proportional to 77,044,152.72, 115,564,609.96 and 18,752,155.92

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Solution

The fourth proportional to 77,044,152.72, 115,564,609.96 and 18,752,155.92 is: 28,127,839.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,044,152.72 : 115,564,609.96 = 18,752,155.92 : x
  2. Step 2: Convert to fraction form
    77,044,152.72/115,564,609.96 = 18,752,155.92/x
  3. Step 3: Cross multiply
    77,044,152.72x = 115,564,609.96 × 18,752,155.92
  4. Step 4: Simplify right side
    77,044,152.72x = 2,167,085,584,803,905
  5. Step 5: Solve for x
    x = 2,167,085,584,803,905/77,044,152.72
  6. Step 6: Final answer
    x = 28,127,839.79

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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.