Home / 83,622,603.70-125,433,905.55-66,403,915.30

Finding the Fourth Proportional to 83,622,603.70, 125,433,905.55 and 66,403,915.30

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Solution

The fourth proportional to 83,622,603.70, 125,433,905.55 and 66,403,915.30 is: 99,605,872.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,622,603.70 : 125,433,905.55 = 66,403,915.30 : x
  2. Step 2: Convert to fraction form
    83,622,603.70/125,433,905.55 = 66,403,915.30/x
  3. Step 3: Cross multiply
    83,622,603.70x = 125,433,905.55 × 66,403,915.30
  4. Step 4: Simplify right side
    83,622,603.70x = 8,329,302,439,890,399
  5. Step 5: Solve for x
    x = 8,329,302,439,890,399/83,622,603.70
  6. Step 6: Final answer
    x = 99,605,872.95

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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.