Home / 291,917,145.60-437,819,731.20-87,451,891.20

Finding the Fourth Proportional to 291,917,145.60, 437,819,731.20 and 87,451,891.20

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Solution

The fourth proportional to 291,917,145.60, 437,819,731.20 and 87,451,891.20 is: 131,161,064.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,917,145.60 : 437,819,731.20 = 87,451,891.20 : x
  2. Step 2: Convert to fraction form
    291,917,145.60/437,819,731.20 = 87,451,891.20/x
  3. Step 3: Cross multiply
    291,917,145.60x = 437,819,731.20 × 87,451,891.20
  4. Step 4: Simplify right side
    291,917,145.60x = 38,288,163,498,115,648
  5. Step 5: Solve for x
    x = 38,288,163,498,115,648/291,917,145.60
  6. Step 6: Final answer
    x = 131,161,064.28

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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.