Home / 140,273,489.18-193,583,393.35-78,393,825.92

Finding the Fourth Proportional to 140,273,489.18, 193,583,393.35 and 78,393,825.92

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Solution

The fourth proportional to 140,273,489.18, 193,583,393.35 and 78,393,825.92 is: 108,186,820.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,273,489.18 : 193,583,393.35 = 78,393,825.92 : x
  2. Step 2: Convert to fraction form
    140,273,489.18/193,583,393.35 = 78,393,825.92/x
  3. Step 3: Cross multiply
    140,273,489.18x = 193,583,393.35 × 78,393,825.92
  4. Step 4: Simplify right side
    140,273,489.18x = 15,175,742,838,314,870
  5. Step 5: Solve for x
    x = 15,175,742,838,314,870/140,273,489.18
  6. Step 6: Final answer
    x = 108,186,820.81

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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.