Home / 28,857,423.41-39,825,881.57-15,806,561.04

Finding the Fourth Proportional to 28,857,423.41, 39,825,881.57 and 15,806,561.04

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Solution

The fourth proportional to 28,857,423.41, 39,825,881.57 and 15,806,561.04 is: 21,814,498.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,857,423.41 : 39,825,881.57 = 15,806,561.04 : x
  2. Step 2: Convert to fraction form
    28,857,423.41/39,825,881.57 = 15,806,561.04/x
  3. Step 3: Cross multiply
    28,857,423.41x = 39,825,881.57 × 15,806,561.04
  4. Step 4: Simplify right side
    28,857,423.41x = 629,510,227,928,983.12
  5. Step 5: Solve for x
    x = 629,510,227,928,983.12/28,857,423.41
  6. Step 6: Final answer
    x = 21,814,498.79

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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.