Home / 487,293,997.67-730,889,180.97-137,531,417.93

Finding the Fourth Proportional to 487,293,997.67, 730,889,180.97 and 137,531,417.93

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Solution

The fourth proportional to 487,293,997.67, 730,889,180.97 and 137,531,417.93 is: 206,282,502.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,293,997.67 : 730,889,180.97 = 137,531,417.93 : x
  2. Step 2: Convert to fraction form
    487,293,997.67/730,889,180.97 = 137,531,417.93/x
  3. Step 3: Cross multiply
    487,293,997.67x = 730,889,180.97 × 137,531,417.93
  4. Step 4: Simplify right side
    487,293,997.67x = 100,520,225,408,500,480
  5. Step 5: Solve for x
    x = 100,520,225,408,500,480/487,293,997.67
  6. Step 6: Final answer
    x = 206,282,502.74

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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.