Home / 83,016,003.70-124,188,082.35-72,938,307.70

Finding the Fourth Proportional to 83,016,003.70, 124,188,082.35 and 72,938,307.70

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Solution

The fourth proportional to 83,016,003.70, 124,188,082.35 and 72,938,307.70 is: 109,112,317.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,016,003.70 : 124,188,082.35 = 72,938,307.70 : x
  2. Step 2: Convert to fraction form
    83,016,003.70/124,188,082.35 = 72,938,307.70/x
  3. Step 3: Cross multiply
    83,016,003.70x = 124,188,082.35 × 72,938,307.70
  4. Step 4: Simplify right side
    83,016,003.70x = 9,058,068,563,117,240
  5. Step 5: Solve for x
    x = 9,058,068,563,117,240/83,016,003.70
  6. Step 6: Final answer
    x = 109,112,317.62

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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.