Home / 115,182,002.80-172,773,004.20-76,439,953.90

Finding the Fourth Proportional to 115,182,002.80, 172,773,004.20 and 76,439,953.90

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Solution

The fourth proportional to 115,182,002.80, 172,773,004.20 and 76,439,953.90 is: 114,659,930.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,182,002.80 : 172,773,004.20 = 76,439,953.90 : x
  2. Step 2: Convert to fraction form
    115,182,002.80/172,773,004.20 = 76,439,953.90/x
  3. Step 3: Cross multiply
    115,182,002.80x = 172,773,004.20 × 76,439,953.90
  4. Step 4: Simplify right side
    115,182,002.80x = 13,206,760,476,212,506
  5. Step 5: Solve for x
    x = 13,206,760,476,212,506/115,182,002.80
  6. Step 6: Final answer
    x = 114,659,930.85

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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.