Home / 18,687,114.90-28,030,672.35-13,904,145.90

Finding the Fourth Proportional to 18,687,114.90, 28,030,672.35 and 13,904,145.90

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Solution

The fourth proportional to 18,687,114.90, 28,030,672.35 and 13,904,145.90 is: 20,856,218.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,687,114.90 : 28,030,672.35 = 13,904,145.90 : x
  2. Step 2: Convert to fraction form
    18,687,114.90/28,030,672.35 = 13,904,145.90/x
  3. Step 3: Cross multiply
    18,687,114.90x = 28,030,672.35 × 13,904,145.90
  4. Step 4: Simplify right side
    18,687,114.90x = 389,742,558,029,495.88
  5. Step 5: Solve for x
    x = 389,742,558,029,495.88/18,687,114.90
  6. Step 6: Final answer
    x = 20,856,218.85

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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.