Home / 78,009,124.14-107,600,755.47-50,167,033.95

Finding the Fourth Proportional to 78,009,124.14, 107,600,755.47 and 50,167,033.95

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Solution

The fourth proportional to 78,009,124.14, 107,600,755.47 and 50,167,033.95 is: 69,197,171.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,009,124.14 : 107,600,755.47 = 50,167,033.95 : x
  2. Step 2: Convert to fraction form
    78,009,124.14/107,600,755.47 = 50,167,033.95/x
  3. Step 3: Cross multiply
    78,009,124.14x = 107,600,755.47 × 50,167,033.95
  4. Step 4: Simplify right side
    78,009,124.14x = 5,398,010,752,654,877
  5. Step 5: Solve for x
    x = 5,398,010,752,654,877/78,009,124.14
  6. Step 6: Final answer
    x = 69,197,171.64

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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.