Home / 43,428,815.28-65,043,974.16-20,725,655.76

Finding the Fourth Proportional to 43,428,815.28, 65,043,974.16 and 20,725,655.76

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Solution

The fourth proportional to 43,428,815.28, 65,043,974.16 and 20,725,655.76 is: 31,041,118.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,428,815.28 : 65,043,974.16 = 20,725,655.76 : x
  2. Step 2: Convert to fraction form
    43,428,815.28/65,043,974.16 = 20,725,655.76/x
  3. Step 3: Cross multiply
    43,428,815.28x = 65,043,974.16 × 20,725,655.76
  4. Step 4: Simplify right side
    43,428,815.28x = 1,348,079,017,702,495.25
  5. Step 5: Solve for x
    x = 1,348,079,017,702,495.25/43,428,815.28
  6. Step 6: Final answer
    x = 31,041,118.87

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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.