Home / 72,771,081.40-109,083,138.90-36,323,414.20

Finding the Fourth Proportional to 72,771,081.40, 109,083,138.90 and 36,323,414.20

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Solution

The fourth proportional to 72,771,081.40, 109,083,138.90 and 36,323,414.20 is: 54,448,442.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,771,081.40 : 109,083,138.90 = 36,323,414.20 : x
  2. Step 2: Convert to fraction form
    72,771,081.40/109,083,138.90 = 36,323,414.20/x
  3. Step 3: Cross multiply
    72,771,081.40x = 109,083,138.90 × 36,323,414.20
  4. Step 4: Simplify right side
    72,771,081.40x = 3,962,272,036,500,833
  5. Step 5: Solve for x
    x = 3,962,272,036,500,833/72,771,081.40
  6. Step 6: Final answer
    x = 54,448,442.43

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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.