Home / 217,970,587.62-300,872,300.82-129,892,204.98

Finding the Fourth Proportional to 217,970,587.62, 300,872,300.82 and 129,892,204.98

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Solution

The fourth proportional to 217,970,587.62, 300,872,300.82 and 129,892,204.98 is: 179,294,679.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,970,587.62 : 300,872,300.82 = 129,892,204.98 : x
  2. Step 2: Convert to fraction form
    217,970,587.62/300,872,300.82 = 129,892,204.98/x
  3. Step 3: Cross multiply
    217,970,587.62x = 300,872,300.82 × 129,892,204.98
  4. Step 4: Simplify right side
    217,970,587.62x = 39,080,966,570,915,664
  5. Step 5: Solve for x
    x = 39,080,966,570,915,664/217,970,587.62
  6. Step 6: Final answer
    x = 179,294,679.15

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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.