Home / 208,087,003.49-287,159,964.89-124,455,132.68

Finding the Fourth Proportional to 208,087,003.49, 287,159,964.89 and 124,455,132.68

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Solution

The fourth proportional to 208,087,003.49, 287,159,964.89 and 124,455,132.68 is: 171,748,023.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,087,003.49 : 287,159,964.89 = 124,455,132.68 : x
  2. Step 2: Convert to fraction form
    208,087,003.49/287,159,964.89 = 124,455,132.68/x
  3. Step 3: Cross multiply
    208,087,003.49x = 287,159,964.89 × 124,455,132.68
  4. Step 4: Simplify right side
    208,087,003.49x = 35,738,531,528,711,016
  5. Step 5: Solve for x
    x = 35,738,531,528,711,016/208,087,003.49
  6. Step 6: Final answer
    x = 171,748,023.33

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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.