Home / 113,097,177.86-156,080,787.50-85,170,617.61

Finding the Fourth Proportional to 113,097,177.86, 156,080,787.50 and 85,170,617.61

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Solution

The fourth proportional to 113,097,177.86, 156,080,787.50 and 85,170,617.61 is: 117,540,484.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,097,177.86 : 156,080,787.50 = 85,170,617.61 : x
  2. Step 2: Convert to fraction form
    113,097,177.86/156,080,787.50 = 85,170,617.61/x
  3. Step 3: Cross multiply
    113,097,177.86x = 156,080,787.50 × 85,170,617.61
  4. Step 4: Simplify right side
    113,097,177.86x = 13,293,497,068,057,792
  5. Step 5: Solve for x
    x = 13,293,497,068,057,792/113,097,177.86
  6. Step 6: Final answer
    x = 117,540,484.39

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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.