Home / 136,708,602.39-188,620,564.14-77,949,839.16

Finding the Fourth Proportional to 136,708,602.39, 188,620,564.14 and 77,949,839.16

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Solution

The fourth proportional to 136,708,602.39, 188,620,564.14 and 77,949,839.16 is: 107,549,505.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,708,602.39 : 188,620,564.14 = 77,949,839.16 : x
  2. Step 2: Convert to fraction form
    136,708,602.39/188,620,564.14 = 77,949,839.16/x
  3. Step 3: Cross multiply
    136,708,602.39x = 188,620,564.14 × 77,949,839.16
  4. Step 4: Simplify right side
    136,708,602.39x = 14,702,942,636,981,462
  5. Step 5: Solve for x
    x = 14,702,942,636,981,462/136,708,602.39
  6. Step 6: Final answer
    x = 107,549,505.88

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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.