Home / 18,687,530.40-28,031,295.60-13,904,561.40

Finding the Fourth Proportional to 18,687,530.40, 28,031,295.60 and 13,904,561.40

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Solution

The fourth proportional to 18,687,530.40, 28,031,295.60 and 13,904,561.40 is: 20,856,842.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,687,530.40 : 28,031,295.60 = 13,904,561.40 : x
  2. Step 2: Convert to fraction form
    18,687,530.40/28,031,295.60 = 13,904,561.40/x
  3. Step 3: Cross multiply
    18,687,530.40x = 28,031,295.60 × 13,904,561.40
  4. Step 4: Simplify right side
    18,687,530.40x = 389,762,870,791,749.88
  5. Step 5: Solve for x
    x = 389,762,870,791,749.88/18,687,530.40
  6. Step 6: Final answer
    x = 20,856,842.10

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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.