Home / 134,530,187.76-185,651,657.16-72,650,520.96

Finding the Fourth Proportional to 134,530,187.76, 185,651,657.16 and 72,650,520.96

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Solution

The fourth proportional to 134,530,187.76, 185,651,657.16 and 72,650,520.96 is: 100,257,717.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,530,187.76 : 185,651,657.16 = 72,650,520.96 : x
  2. Step 2: Convert to fraction form
    134,530,187.76/185,651,657.16 = 72,650,520.96/x
  3. Step 3: Cross multiply
    134,530,187.76x = 185,651,657.16 × 72,650,520.96
  4. Step 4: Simplify right side
    134,530,187.76x = 13,487,689,609,761,312
  5. Step 5: Solve for x
    x = 13,487,689,609,761,312/134,530,187.76
  6. Step 6: Final answer
    x = 100,257,717.87

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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.