Home / 78,378,390.06-108,162,966.92-43,098,055.98

Finding the Fourth Proportional to 78,378,390.06, 108,162,966.92 and 43,098,055.98

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Solution

The fourth proportional to 78,378,390.06, 108,162,966.92 and 43,098,055.98 is: 59,475,750.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,378,390.06 : 108,162,966.92 = 43,098,055.98 : x
  2. Step 2: Convert to fraction form
    78,378,390.06/108,162,966.92 = 43,098,055.98/x
  3. Step 3: Cross multiply
    78,378,390.06x = 108,162,966.92 × 43,098,055.98
  4. Step 4: Simplify right side
    78,378,390.06x = 4,661,613,603,281,048
  5. Step 5: Solve for x
    x = 4,661,613,603,281,048/78,378,390.06
  6. Step 6: Final answer
    x = 59,475,750.90

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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.