Home / 15,528,824.46-21,429,863.04-9,006,321.72

Finding the Fourth Proportional to 15,528,824.46, 21,429,863.04 and 9,006,321.72

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Solution

The fourth proportional to 15,528,824.46, 21,429,863.04 and 9,006,321.72 is: 12,428,773.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,528,824.46 : 21,429,863.04 = 9,006,321.72 : x
  2. Step 2: Convert to fraction form
    15,528,824.46/21,429,863.04 = 9,006,321.72/x
  3. Step 3: Cross multiply
    15,528,824.46x = 21,429,863.04 × 9,006,321.72
  4. Step 4: Simplify right side
    15,528,824.46x = 193,004,240,953,777.25
  5. Step 5: Solve for x
    x = 193,004,240,953,777.25/15,528,824.46
  6. Step 6: Final answer
    x = 12,428,773.44

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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.