Home / 442,904,345.20-664,353,018.60-115,379,225.20

Finding the Fourth Proportional to 442,904,345.20, 664,353,018.60 and 115,379,225.20

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Solution

The fourth proportional to 442,904,345.20, 664,353,018.60 and 115,379,225.20 is: 173,067,926.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,904,345.20 : 664,353,018.60 = 115,379,225.20 : x
  2. Step 2: Convert to fraction form
    442,904,345.20/664,353,018.60 = 115,379,225.20/x
  3. Step 3: Cross multiply
    442,904,345.20x = 664,353,018.60 × 115,379,225.20
  4. Step 4: Simplify right side
    442,904,345.20x = 76,652,536,545,349,200
  5. Step 5: Solve for x
    x = 76,652,536,545,349,200/442,904,345.20
  6. Step 6: Final answer
    x = 173,067,926.24

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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.