Home / 399,383,680.74-551,138,903.15-223,173,124.04

Finding the Fourth Proportional to 399,383,680.74, 551,138,903.15 and 223,173,124.04

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Solution

The fourth proportional to 399,383,680.74, 551,138,903.15 and 223,173,124.04 is: 307,973,001.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,383,680.74 : 551,138,903.15 = 223,173,124.04 : x
  2. Step 2: Convert to fraction form
    399,383,680.74/551,138,903.15 = 223,173,124.04/x
  3. Step 3: Cross multiply
    399,383,680.74x = 551,138,903.15 × 223,173,124.04
  4. Step 4: Simplify right side
    399,383,680.74x = 122,999,390,792,092,928
  5. Step 5: Solve for x
    x = 122,999,390,792,092,928/399,383,680.74
  6. Step 6: Final answer
    x = 307,973,001.21

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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.