Home / 398,272,667.96-597,496,744.38-121,925,972.36

Finding the Fourth Proportional to 398,272,667.96, 597,496,744.38 and 121,925,972.36

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Solution

The fourth proportional to 398,272,667.96, 597,496,744.38 and 121,925,972.36 is: 182,915,819.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,272,667.96 : 597,496,744.38 = 121,925,972.36 : x
  2. Step 2: Convert to fraction form
    398,272,667.96/597,496,744.38 = 121,925,972.36/x
  3. Step 3: Cross multiply
    398,272,667.96x = 597,496,744.38 × 121,925,972.36
  4. Step 4: Simplify right side
    398,272,667.96x = 72,850,371,540,465,872
  5. Step 5: Solve for x
    x = 72,850,371,540,465,872/398,272,667.96
  6. Step 6: Final answer
    x = 182,915,819.74

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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.