Home / 85,221,704.20-127,757,906.70-51,156,603.40

Finding the Fourth Proportional to 85,221,704.20, 127,757,906.70 and 51,156,603.40

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Solution

The fourth proportional to 85,221,704.20, 127,757,906.70 and 51,156,603.40 is: 76,690,094.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,221,704.20 : 127,757,906.70 = 51,156,603.40 : x
  2. Step 2: Convert to fraction form
    85,221,704.20/127,757,906.70 = 51,156,603.40/x
  3. Step 3: Cross multiply
    85,221,704.20x = 127,757,906.70 × 51,156,603.40
  4. Step 4: Simplify right side
    85,221,704.20x = 6,535,660,564,266,103
  5. Step 5: Solve for x
    x = 6,535,660,564,266,103/85,221,704.20
  6. Step 6: Final answer
    x = 76,690,094.68

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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.