Home / 138,816,053.70-208,224,080.55-70,791,605.70

Finding the Fourth Proportional to 138,816,053.70, 208,224,080.55 and 70,791,605.70

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Solution

The fourth proportional to 138,816,053.70, 208,224,080.55 and 70,791,605.70 is: 106,187,408.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,816,053.70 : 208,224,080.55 = 70,791,605.70 : x
  2. Step 2: Convert to fraction form
    138,816,053.70/208,224,080.55 = 70,791,605.70/x
  3. Step 3: Cross multiply
    138,816,053.70x = 208,224,080.55 × 70,791,605.70
  4. Step 4: Simplify right side
    138,816,053.70x = 14,740,517,007,540,640
  5. Step 5: Solve for x
    x = 14,740,517,007,540,640/138,816,053.70
  6. Step 6: Final answer
    x = 106,187,408.55

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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.