Home / 57,081,990.60-78,773,147.55-30,976,508.39

Finding the Fourth Proportional to 57,081,990.60, 78,773,147.55 and 30,976,508.39

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Solution

The fourth proportional to 57,081,990.60, 78,773,147.55 and 30,976,508.39 is: 42,747,581.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,081,990.60 : 78,773,147.55 = 30,976,508.39 : x
  2. Step 2: Convert to fraction form
    57,081,990.60/78,773,147.55 = 30,976,508.39/x
  3. Step 3: Cross multiply
    57,081,990.60x = 78,773,147.55 × 30,976,508.39
  4. Step 4: Simplify right side
    57,081,990.60x = 2,440,117,065,989,283
  5. Step 5: Solve for x
    x = 2,440,117,065,989,283/57,081,990.60
  6. Step 6: Final answer
    x = 42,747,581.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.