Home / 399,434,282.07-551,171,570.25-220,794,038.91

Finding the Fourth Proportional to 399,434,282.07, 551,171,570.25 and 220,794,038.91

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Solution

The fourth proportional to 399,434,282.07, 551,171,570.25 and 220,794,038.91 is: 304,669,385.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,434,282.07 : 551,171,570.25 = 220,794,038.91 : x
  2. Step 2: Convert to fraction form
    399,434,282.07/551,171,570.25 = 220,794,038.91/x
  3. Step 3: Cross multiply
    399,434,282.07x = 551,171,570.25 × 220,794,038.91
  4. Step 4: Simplify right side
    399,434,282.07x = 121,695,397,127,864,304
  5. Step 5: Solve for x
    x = 121,695,397,127,864,304/399,434,282.07
  6. Step 6: Final answer
    x = 304,669,385.15

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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.