Home / 80,172,002.64-120,199,120.12-25,553,145.36

Finding the Fourth Proportional to 80,172,002.64, 120,199,120.12 and 25,553,145.36

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Solution

The fourth proportional to 80,172,002.64, 120,199,120.12 and 25,553,145.36 is: 38,310,950.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,172,002.64 : 120,199,120.12 = 25,553,145.36 : x
  2. Step 2: Convert to fraction form
    80,172,002.64/120,199,120.12 = 25,553,145.36/x
  3. Step 3: Cross multiply
    80,172,002.64x = 120,199,120.12 × 25,553,145.36
  4. Step 4: Simplify right side
    80,172,002.64x = 3,071,465,588,570,460.50
  5. Step 5: Solve for x
    x = 3,071,465,588,570,460.50/80,172,002.64
  6. Step 6: Final answer
    x = 38,310,950.05

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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.