Home / 165,219,675.20-247,829,512.80-79,126,233.20

Finding the Fourth Proportional to 165,219,675.20, 247,829,512.80 and 79,126,233.20

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Solution

The fourth proportional to 165,219,675.20, 247,829,512.80 and 79,126,233.20 is: 118,689,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,219,675.20 : 247,829,512.80 = 79,126,233.20 : x
  2. Step 2: Convert to fraction form
    165,219,675.20/247,829,512.80 = 79,126,233.20/x
  3. Step 3: Cross multiply
    165,219,675.20x = 247,829,512.80 × 79,126,233.20
  4. Step 4: Simplify right side
    165,219,675.20x = 19,609,815,823,655,188
  5. Step 5: Solve for x
    x = 19,609,815,823,655,188/165,219,675.20
  6. Step 6: Final answer
    x = 118,689,349.80

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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.