Home / 85,291,909.40-127,937,864.10-67,152,056.60

Finding the Fourth Proportional to 85,291,909.40, 127,937,864.10 and 67,152,056.60

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Solution

The fourth proportional to 85,291,909.40, 127,937,864.10 and 67,152,056.60 is: 100,728,084.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,291,909.40 : 127,937,864.10 = 67,152,056.60 : x
  2. Step 2: Convert to fraction form
    85,291,909.40/127,937,864.10 = 67,152,056.60/x
  3. Step 3: Cross multiply
    85,291,909.40x = 127,937,864.10 × 67,152,056.60
  4. Step 4: Simplify right side
    85,291,909.40x = 8,591,290,691,326,307
  5. Step 5: Solve for x
    x = 8,591,290,691,326,307/85,291,909.40
  6. Step 6: Final answer
    x = 100,728,084.90

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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.