Home / 76,690,687.80-115,101,350.10-31,285,068.60

Finding the Fourth Proportional to 76,690,687.80, 115,101,350.10 and 31,285,068.60

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Solution

The fourth proportional to 76,690,687.80, 115,101,350.10 and 31,285,068.60 is: 46,954,248.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,690,687.80 : 115,101,350.10 = 31,285,068.60 : x
  2. Step 2: Convert to fraction form
    76,690,687.80/115,101,350.10 = 31,285,068.60/x
  3. Step 3: Cross multiply
    76,690,687.80x = 115,101,350.10 × 31,285,068.60
  4. Step 4: Simplify right side
    76,690,687.80x = 3,600,953,633,831,117
  5. Step 5: Solve for x
    x = 3,600,953,633,831,117/76,690,687.80
  6. Step 6: Final answer
    x = 46,954,248.78

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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.