Home / 78,380,787.42-108,169,178.52-43,574,059.56

Finding the Fourth Proportional to 78,380,787.42, 108,169,178.52 and 43,574,059.56

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Solution

The fourth proportional to 78,380,787.42, 108,169,178.52 and 43,574,059.56 is: 60,134,254.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,380,787.42 : 108,169,178.52 = 43,574,059.56 : x
  2. Step 2: Convert to fraction form
    78,380,787.42/108,169,178.52 = 43,574,059.56/x
  3. Step 3: Cross multiply
    78,380,787.42x = 108,169,178.52 × 43,574,059.56
  4. Step 4: Simplify right side
    78,380,787.42x = 4,713,370,227,386,753
  5. Step 5: Solve for x
    x = 4,713,370,227,386,753/78,380,787.42
  6. Step 6: Final answer
    x = 60,134,254.61

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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.