Home / 231,420,978,895.57-347,176,171,999.76-87,988,854,960.21

Finding the Fourth Proportional to 231,420,978,895.57, 347,176,171,999.76 and 87,988,854,960.21

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Solution

The fourth proportional to 231,420,978,895.57, 347,176,171,999.76 and 87,988,854,960.21 is: 132,000,279,272.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,420,978,895.57 : 347,176,171,999.76 = 87,988,854,960.21 : x
  2. Step 2: Convert to fraction form
    231,420,978,895.57/347,176,171,999.76 = 87,988,854,960.21/x
  3. Step 3: Cross multiply
    231,420,978,895.57x = 347,176,171,999.76 × 87,988,854,960.21
  4. Step 4: Simplify right side
    231,420,978,895.57x = 30,547,633,843,727,807,545,344
  5. Step 5: Solve for x
    x = 30,547,633,843,727,807,545,344/231,420,978,895.57
  6. Step 6: Final answer
    x = 132,000,279,272.49

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1.5x scale

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.