Home / 660,145,500.64-990,251,142.24-251,233,343.20

Finding the Fourth Proportional to 660,145,500.64, 990,251,142.24 and 251,233,343.20

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Solution

The fourth proportional to 660,145,500.64, 990,251,142.24 and 251,233,343.20 is: 376,862,532.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,145,500.64 : 990,251,142.24 = 251,233,343.20 : x
  2. Step 2: Convert to fraction form
    660,145,500.64/990,251,142.24 = 251,233,343.20/x
  3. Step 3: Cross multiply
    660,145,500.64x = 990,251,142.24 × 251,233,343.20
  4. Step 4: Simplify right side
    660,145,500.64x = 248,784,105,072,573,920
  5. Step 5: Solve for x
    x = 248,784,105,072,573,920/660,145,500.64
  6. Step 6: Final answer
    x = 376,862,532.32

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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.