Home / 161,987,012.48-223,541,932.74-91,437,472.50

Finding the Fourth Proportional to 161,987,012.48, 223,541,932.74 and 91,437,472.50

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Solution

The fourth proportional to 161,987,012.48, 223,541,932.74 and 91,437,472.50 is: 126,183,630.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,987,012.48 : 223,541,932.74 = 91,437,472.50 : x
  2. Step 2: Convert to fraction form
    161,987,012.48/223,541,932.74 = 91,437,472.50/x
  3. Step 3: Cross multiply
    161,987,012.48x = 223,541,932.74 × 91,437,472.50
  4. Step 4: Simplify right side
    161,987,012.48x = 20,440,109,327,510,600
  5. Step 5: Solve for x
    x = 20,440,109,327,510,600/161,987,012.48
  6. Step 6: Final answer
    x = 126,183,630.49

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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.