Home / 139,418,552.70-209,127,829.05-83,936,112.30

Finding the Fourth Proportional to 139,418,552.70, 209,127,829.05 and 83,936,112.30

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Solution

The fourth proportional to 139,418,552.70, 209,127,829.05 and 83,936,112.30 is: 125,904,168.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,418,552.70 : 209,127,829.05 = 83,936,112.30 : x
  2. Step 2: Convert to fraction form
    139,418,552.70/209,127,829.05 = 83,936,112.30/x
  3. Step 3: Cross multiply
    139,418,552.70x = 209,127,829.05 × 83,936,112.30
  4. Step 4: Simplify right side
    139,418,552.70x = 17,553,376,944,196,002
  5. Step 5: Solve for x
    x = 17,553,376,944,196,002/139,418,552.70
  6. Step 6: Final answer
    x = 125,904,168.45

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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.