Home / 127,766,683.40-191,650,025.10-79,393,742.60

Finding the Fourth Proportional to 127,766,683.40, 191,650,025.10 and 79,393,742.60

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Solution

The fourth proportional to 127,766,683.40, 191,650,025.10 and 79,393,742.60 is: 119,090,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,766,683.40 : 191,650,025.10 = 79,393,742.60 : x
  2. Step 2: Convert to fraction form
    127,766,683.40/191,650,025.10 = 79,393,742.60/x
  3. Step 3: Cross multiply
    127,766,683.40x = 191,650,025.10 × 79,393,742.60
  4. Step 4: Simplify right side
    127,766,683.40x = 15,215,812,762,072,938
  5. Step 5: Solve for x
    x = 15,215,812,762,072,938/127,766,683.40
  6. Step 6: Final answer
    x = 119,090,613.90

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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.