Home / 399,948,612.65-599,267,794.54-213,004,073.92

Finding the Fourth Proportional to 399,948,612.65, 599,267,794.54 and 213,004,073.92

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Solution

The fourth proportional to 399,948,612.65, 599,267,794.54 and 213,004,073.92 is: 319,157,205.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,948,612.65 : 599,267,794.54 = 213,004,073.92 : x
  2. Step 2: Convert to fraction form
    399,948,612.65/599,267,794.54 = 213,004,073.92/x
  3. Step 3: Cross multiply
    399,948,612.65x = 599,267,794.54 × 213,004,073.92
  4. Step 4: Simplify right side
    399,948,612.65x = 127,646,481,604,064,832
  5. Step 5: Solve for x
    x = 127,646,481,604,064,832/399,948,612.65
  6. Step 6: Final answer
    x = 319,157,205.62

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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.