Home / 113,387,265.95-156,390,879-85,511,149.56

Finding the Fourth Proportional to 113,387,265.95, 156,390,879 and 85,511,149.56

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Solution

The fourth proportional to 113,387,265.95, 156,390,879 and 85,511,149.56 is: 117,942,378.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,387,265.95 : 156,390,879 = 85,511,149.56 : x
  2. Step 2: Convert to fraction form
    113,387,265.95/156,390,879 = 85,511,149.56/x
  3. Step 3: Cross multiply
    113,387,265.95x = 156,390,879 × 85,511,149.56
  4. Step 4: Simplify right side
    113,387,265.95x = 13,373,163,843,988,864
  5. Step 5: Solve for x
    x = 13,373,163,843,988,864/113,387,265.95
  6. Step 6: Final answer
    x = 117,942,378.56

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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.