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Finding the Fourth Proportional to 398,662,605.60, 597,350,055.60 and 225,624,832.80

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Solution

The fourth proportional to 398,662,605.60, 597,350,055.60 and 225,624,832.80 is: 338,072,857.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,662,605.60 : 597,350,055.60 = 225,624,832.80 : x
  2. Step 2: Convert to fraction form
    398,662,605.60/597,350,055.60 = 225,624,832.80/x
  3. Step 3: Cross multiply
    398,662,605.60x = 597,350,055.60 × 225,624,832.80
  4. Step 4: Simplify right side
    398,662,605.60x = 134,777,006,417,820,720
  5. Step 5: Solve for x
    x = 134,777,006,417,820,720/398,662,605.60
  6. Step 6: Final answer
    x = 338,072,857.91

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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.