Home / 161,861,557.88-223,368,791.94-87,521,940.83

Finding the Fourth Proportional to 161,861,557.88, 223,368,791.94 and 87,521,940.83

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Solution

The fourth proportional to 161,861,557.88, 223,368,791.94 and 87,521,940.83 is: 120,780,192.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,861,557.88 : 223,368,791.94 = 87,521,940.83 : x
  2. Step 2: Convert to fraction form
    161,861,557.88/223,368,791.94 = 87,521,940.83/x
  3. Step 3: Cross multiply
    161,861,557.88x = 223,368,791.94 × 87,521,940.83
  4. Step 4: Simplify right side
    161,861,557.88x = 19,549,670,191,999,680
  5. Step 5: Solve for x
    x = 19,549,670,191,999,680/161,861,557.88
  6. Step 6: Final answer
    x = 120,780,192.95

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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.