Home / 115,391,434.70-172,940,185.65-47,157,034.70

Finding the Fourth Proportional to 115,391,434.70, 172,940,185.65 and 47,157,034.70

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Solution

The fourth proportional to 115,391,434.70, 172,940,185.65 and 47,157,034.70 is: 70,675,491.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,391,434.70 : 172,940,185.65 = 47,157,034.70 : x
  2. Step 2: Convert to fraction form
    115,391,434.70/172,940,185.65 = 47,157,034.70/x
  3. Step 3: Cross multiply
    115,391,434.70x = 172,940,185.65 × 47,157,034.70
  4. Step 4: Simplify right side
    115,391,434.70x = 8,155,346,335,721,493
  5. Step 5: Solve for x
    x = 8,155,346,335,721,493/115,391,434.70
  6. Step 6: Final answer
    x = 70,675,491.27

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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.