Home / 18,887,568.60-28,331,352.90-16,655,516.40

Finding the Fourth Proportional to 18,887,568.60, 28,331,352.90 and 16,655,516.40

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Solution

The fourth proportional to 18,887,568.60, 28,331,352.90 and 16,655,516.40 is: 24,983,274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887,568.60 : 28,331,352.90 = 16,655,516.40 : x
  2. Step 2: Convert to fraction form
    18,887,568.60/28,331,352.90 = 16,655,516.40/x
  3. Step 3: Cross multiply
    18,887,568.60x = 28,331,352.90 × 16,655,516.40
  4. Step 4: Simplify right side
    18,887,568.60x = 471,873,312,860,137.56
  5. Step 5: Solve for x
    x = 471,873,312,860,137.56/18,887,568.60
  6. Step 6: Final answer
    x = 24,983,274.60

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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.