Home / 161,987,013.48-223,541,934.12-91,437,473.50

Finding the Fourth Proportional to 161,987,013.48, 223,541,934.12 and 91,437,473.50

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Solution

The fourth proportional to 161,987,013.48, 223,541,934.12 and 91,437,473.50 is: 126,183,631.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,987,013.48 : 223,541,934.12 = 91,437,473.50 : x
  2. Step 2: Convert to fraction form
    161,987,013.48/223,541,934.12 = 91,437,473.50/x
  3. Step 3: Cross multiply
    161,987,013.48x = 223,541,934.12 × 91,437,473.50
  4. Step 4: Simplify right side
    161,987,013.48x = 20,440,109,677,236,248
  5. Step 5: Solve for x
    x = 20,440,109,677,236,248/161,987,013.48
  6. Step 6: Final answer
    x = 126,183,631.87

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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.