Home / 78,701,241.70-118,051,862.55-40,437,489.70

Finding the Fourth Proportional to 78,701,241.70, 118,051,862.55 and 40,437,489.70

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Solution

The fourth proportional to 78,701,241.70, 118,051,862.55 and 40,437,489.70 is: 60,656,234.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,701,241.70 : 118,051,862.55 = 40,437,489.70 : x
  2. Step 2: Convert to fraction form
    78,701,241.70/118,051,862.55 = 40,437,489.70/x
  3. Step 3: Cross multiply
    78,701,241.70x = 118,051,862.55 × 40,437,489.70
  4. Step 4: Simplify right side
    78,701,241.70x = 4,773,720,975,931,441
  5. Step 5: Solve for x
    x = 4,773,720,975,931,441/78,701,241.70
  6. Step 6: Final answer
    x = 60,656,234.55

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Similar ratio
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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.