Home / 102,020,702.09-140,744,233.97-64,831,069.85

Finding the Fourth Proportional to 102,020,702.09, 140,744,233.97 and 64,831,069.85

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Solution

The fourth proportional to 102,020,702.09, 140,744,233.97 and 64,831,069.85 is: 89,438,702.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,020,702.09 : 140,744,233.97 = 64,831,069.85 : x
  2. Step 2: Convert to fraction form
    102,020,702.09/140,744,233.97 = 64,831,069.85/x
  3. Step 3: Cross multiply
    102,020,702.09x = 140,744,233.97 × 64,831,069.85
  4. Step 4: Simplify right side
    102,020,702.09x = 9,124,599,263,493,812
  5. Step 5: Solve for x
    x = 9,124,599,263,493,812/102,020,702.09
  6. Step 6: Final answer
    x = 89,438,702.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.