Home / 268,272,005.70-402,408,008.55-76,795,781.70

Finding the Fourth Proportional to 268,272,005.70, 402,408,008.55 and 76,795,781.70

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Solution

The fourth proportional to 268,272,005.70, 402,408,008.55 and 76,795,781.70 is: 115,193,672.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,272,005.70 : 402,408,008.55 = 76,795,781.70 : x
  2. Step 2: Convert to fraction form
    268,272,005.70/402,408,008.55 = 76,795,781.70/x
  3. Step 3: Cross multiply
    268,272,005.70x = 402,408,008.55 × 76,795,781.70
  4. Step 4: Simplify right side
    268,272,005.70x = 30,903,237,578,937,536
  5. Step 5: Solve for x
    x = 30,903,237,578,937,536/268,272,005.70
  6. Step 6: Final answer
    x = 115,193,672.55

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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.