Home / 92,165,912.40-138,248,868.60-77,385,291.60

Finding the Fourth Proportional to 92,165,912.40, 138,248,868.60 and 77,385,291.60

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Solution

The fourth proportional to 92,165,912.40, 138,248,868.60 and 77,385,291.60 is: 116,077,937.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,165,912.40 : 138,248,868.60 = 77,385,291.60 : x
  2. Step 2: Convert to fraction form
    92,165,912.40/138,248,868.60 = 77,385,291.60/x
  3. Step 3: Cross multiply
    92,165,912.40x = 138,248,868.60 × 77,385,291.60
  4. Step 4: Simplify right side
    92,165,912.40x = 10,698,429,009,981,082
  5. Step 5: Solve for x
    x = 10,698,429,009,981,082/92,165,912.40
  6. Step 6: Final answer
    x = 116,077,937.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.