Home / 31,251,320.48-43,141,775.46-20,814,705.20

Finding the Fourth Proportional to 31,251,320.48, 43,141,775.46 and 20,814,705.20

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Solution

The fourth proportional to 31,251,320.48, 43,141,775.46 and 20,814,705.20 is: 28,734,252.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,251,320.48 : 43,141,775.46 = 20,814,705.20 : x
  2. Step 2: Convert to fraction form
    31,251,320.48/43,141,775.46 = 20,814,705.20/x
  3. Step 3: Cross multiply
    31,251,320.48x = 43,141,775.46 × 20,814,705.20
  4. Step 4: Simplify right side
    31,251,320.48x = 897,983,338,004,494.38
  5. Step 5: Solve for x
    x = 897,983,338,004,494.38/31,251,320.48
  6. Step 6: Final answer
    x = 28,734,252.64

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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.