Home / 18,687,499.40-28,031,249.10-13,904,530.40

Finding the Fourth Proportional to 18,687,499.40, 28,031,249.10 and 13,904,530.40

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Solution

The fourth proportional to 18,687,499.40, 28,031,249.10 and 13,904,530.40 is: 20,856,795.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,687,499.40 : 28,031,249.10 = 13,904,530.40 : x
  2. Step 2: Convert to fraction form
    18,687,499.40/28,031,249.10 = 13,904,530.40/x
  3. Step 3: Cross multiply
    18,687,499.40x = 28,031,249.10 × 13,904,530.40
  4. Step 4: Simplify right side
    18,687,499.40x = 389,761,355,260,922.69
  5. Step 5: Solve for x
    x = 389,761,355,260,922.69/18,687,499.40
  6. Step 6: Final answer
    x = 20,856,795.60

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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.