Home / 76,856,519.52-106,063,528.14-42,049,957.28

Finding the Fourth Proportional to 76,856,519.52, 106,063,528.14 and 42,049,957.28

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Solution

The fourth proportional to 76,856,519.52, 106,063,528.14 and 42,049,957.28 is: 58,029,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,856,519.52 : 106,063,528.14 = 42,049,957.28 : x
  2. Step 2: Convert to fraction form
    76,856,519.52/106,063,528.14 = 42,049,957.28/x
  3. Step 3: Cross multiply
    76,856,519.52x = 106,063,528.14 × 42,049,957.28
  4. Step 4: Simplify right side
    76,856,519.52x = 4,459,966,826,722,760
  5. Step 5: Solve for x
    x = 4,459,966,826,722,760/76,856,519.52
  6. Step 6: Final answer
    x = 58,029,778.80

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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.