Home / 72,983,881.85-100,718,023.76-39,493,361.08

Finding the Fourth Proportional to 72,983,881.85, 100,718,023.76 and 39,493,361.08

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Solution

The fourth proportional to 72,983,881.85, 100,718,023.76 and 39,493,361.08 is: 54,500,982.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,983,881.85 : 100,718,023.76 = 39,493,361.08 : x
  2. Step 2: Convert to fraction form
    72,983,881.85/100,718,023.76 = 39,493,361.08/x
  3. Step 3: Cross multiply
    72,983,881.85x = 100,718,023.76 × 39,493,361.08
  4. Step 4: Simplify right side
    72,983,881.85x = 3,977,693,279,127,691.50
  5. Step 5: Solve for x
    x = 3,977,693,279,127,691.50/72,983,881.85
  6. Step 6: Final answer
    x = 54,500,982.66

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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.