Home / 442,857,009.20-664,282,014.60-115,331,889.20

Finding the Fourth Proportional to 442,857,009.20, 664,282,014.60 and 115,331,889.20

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Solution

The fourth proportional to 442,857,009.20, 664,282,014.60 and 115,331,889.20 is: 172,996,922.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,857,009.20 : 664,282,014.60 = 115,331,889.20 : x
  2. Step 2: Convert to fraction form
    442,857,009.20/664,282,014.60 = 115,331,889.20/x
  3. Step 3: Cross multiply
    442,857,009.20x = 664,282,014.60 × 115,331,889.20
  4. Step 4: Simplify right side
    442,857,009.20x = 76,612,899,705,399,984
  5. Step 5: Solve for x
    x = 76,612,899,705,399,984/442,857,009.20
  6. Step 6: Final answer
    x = 172,996,922.51

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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.