Home / 399,480,399.38-599,220,599.07-112,266,063.38

Finding the Fourth Proportional to 399,480,399.38, 599,220,599.07 and 112,266,063.38

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Solution

The fourth proportional to 399,480,399.38, 599,220,599.07 and 112,266,063.38 is: 168,399,095.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,480,399.38 : 599,220,599.07 = 112,266,063.38 : x
  2. Step 2: Convert to fraction form
    399,480,399.38/599,220,599.07 = 112,266,063.38/x
  3. Step 3: Cross multiply
    399,480,399.38x = 599,220,599.07 × 112,266,063.38
  4. Step 4: Simplify right side
    399,480,399.38x = 67,272,137,753,794,192
  5. Step 5: Solve for x
    x = 67,272,137,753,794,192/399,480,399.38
  6. Step 6: Final answer
    x = 168,399,095.07

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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.