Home / 20,956,543.70-31,434,815.55-8,839,688.90

Finding the Fourth Proportional to 20,956,543.70, 31,434,815.55 and 8,839,688.90

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Solution

The fourth proportional to 20,956,543.70, 31,434,815.55 and 8,839,688.90 is: 13,259,533.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,543.70 : 31,434,815.55 = 8,839,688.90 : x
  2. Step 2: Convert to fraction form
    20,956,543.70/31,434,815.55 = 8,839,688.90/x
  3. Step 3: Cross multiply
    20,956,543.70x = 31,434,815.55 × 8,839,688.90
  4. Step 4: Simplify right side
    20,956,543.70x = 277,873,990,090,882.41
  5. Step 5: Solve for x
    x = 277,873,990,090,882.41/20,956,543.70
  6. Step 6: Final answer
    x = 13,259,533.35

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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.