Home / 83,017,870.40-124,526,805.60-78,314,945.60

Finding the Fourth Proportional to 83,017,870.40, 124,526,805.60 and 78,314,945.60

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Solution

The fourth proportional to 83,017,870.40, 124,526,805.60 and 78,314,945.60 is: 117,472,418.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,017,870.40 : 124,526,805.60 = 78,314,945.60 : x
  2. Step 2: Convert to fraction form
    83,017,870.40/124,526,805.60 = 78,314,945.60/x
  3. Step 3: Cross multiply
    83,017,870.40x = 124,526,805.60 × 78,314,945.60
  4. Step 4: Simplify right side
    83,017,870.40x = 9,752,310,006,305,774
  5. Step 5: Solve for x
    x = 9,752,310,006,305,774/83,017,870.40
  6. Step 6: Final answer
    x = 117,472,418.40

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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.