Home / 231,970,062-320,110,491.42-127,547,402.16

Finding the Fourth Proportional to 231,970,062, 320,110,491.42 and 127,547,402.16

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Solution

The fourth proportional to 231,970,062, 320,110,491.42 and 127,547,402.16 is: 176,010,909.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,970,062 : 320,110,491.42 = 127,547,402.16 : x
  2. Step 2: Convert to fraction form
    231,970,062/320,110,491.42 = 127,547,402.16/x
  3. Step 3: Cross multiply
    231,970,062x = 320,110,491.42 × 127,547,402.16
  4. Step 4: Simplify right side
    231,970,062x = 40,829,261,584,781,968
  5. Step 5: Solve for x
    x = 40,829,261,584,781,968/231,970,062
  6. Step 6: Final answer
    x = 176,010,909.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.