Home / 487,293,998.66-730,889,182.46-137,531,418.92

Finding the Fourth Proportional to 487,293,998.66, 730,889,182.46 and 137,531,418.92

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Solution

The fourth proportional to 487,293,998.66, 730,889,182.46 and 137,531,418.92 is: 206,282,504.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,293,998.66 : 730,889,182.46 = 137,531,418.92 : x
  2. Step 2: Convert to fraction form
    487,293,998.66/730,889,182.46 = 137,531,418.92/x
  3. Step 3: Cross multiply
    487,293,998.66x = 730,889,182.46 × 137,531,418.92
  4. Step 4: Simplify right side
    487,293,998.66x = 100,520,226,337,002,576
  5. Step 5: Solve for x
    x = 100,520,226,337,002,576/487,293,998.66
  6. Step 6: Final answer
    x = 206,282,504.22

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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.