Home / 85,177,890.30-127,766,835.45-60,991,419.90

Finding the Fourth Proportional to 85,177,890.30, 127,766,835.45 and 60,991,419.90

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Solution

The fourth proportional to 85,177,890.30, 127,766,835.45 and 60,991,419.90 is: 91,487,129.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,177,890.30 : 127,766,835.45 = 60,991,419.90 : x
  2. Step 2: Convert to fraction form
    85,177,890.30/127,766,835.45 = 60,991,419.90/x
  3. Step 3: Cross multiply
    85,177,890.30x = 127,766,835.45 × 60,991,419.90
  4. Step 4: Simplify right side
    85,177,890.30x = 7,792,680,710,225,155
  5. Step 5: Solve for x
    x = 7,792,680,710,225,155/85,177,890.30
  6. Step 6: Final answer
    x = 91,487,129.85

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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.