Home / 660,145,316.64-990,250,866-251,233,159.20

Finding the Fourth Proportional to 660,145,316.64, 990,250,866 and 251,233,159.20

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Solution

The fourth proportional to 660,145,316.64, 990,250,866 and 251,233,159.20 is: 376,862,256.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,145,316.64 : 990,250,866 = 251,233,159.20 : x
  2. Step 2: Convert to fraction form
    660,145,316.64/990,250,866 = 251,233,159.20/x
  3. Step 3: Cross multiply
    660,145,316.64x = 990,250,866 × 251,233,159.20
  4. Step 4: Simplify right side
    660,145,316.64x = 248,783,853,465,715,840
  5. Step 5: Solve for x
    x = 248,783,853,465,715,840/660,145,316.64
  6. Step 6: Final answer
    x = 376,862,256.23

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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.