Home / 399,049,465.91-550,683,061.40-222,840,557.69

Finding the Fourth Proportional to 399,049,465.91, 550,683,061.40 and 222,840,557.69

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Solution

The fourth proportional to 399,049,465.91, 550,683,061.40 and 222,840,557.69 is: 307,517,064.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,049,465.91 : 550,683,061.40 = 222,840,557.69 : x
  2. Step 2: Convert to fraction form
    399,049,465.91/550,683,061.40 = 222,840,557.69/x
  3. Step 3: Cross multiply
    399,049,465.91x = 550,683,061.40 × 222,840,557.69
  4. Step 4: Simplify right side
    399,049,465.91x = 122,714,520,511,698,304
  5. Step 5: Solve for x
    x = 122,714,520,511,698,304/399,049,465.91
  6. Step 6: Final answer
    x = 307,517,064.91

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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.