Home / 52,149,708.14-78,165,056.72-21,005,431.61

Finding the Fourth Proportional to 52,149,708.14, 78,165,056.72 and 21,005,431.61

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Solution

The fourth proportional to 52,149,708.14, 78,165,056.72 and 21,005,431.61 is: 31,484,179.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,149,708.14 : 78,165,056.72 = 21,005,431.61 : x
  2. Step 2: Convert to fraction form
    52,149,708.14/78,165,056.72 = 21,005,431.61/x
  3. Step 3: Cross multiply
    52,149,708.14x = 78,165,056.72 × 21,005,431.61
  4. Step 4: Simplify right side
    52,149,708.14x = 1,641,890,752,727,878.50
  5. Step 5: Solve for x
    x = 1,641,890,752,727,878.50/52,149,708.14
  6. Step 6: Final answer
    x = 31,484,179.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.