Home / 20,542,655.58-28,348,516.15-11,375,101.50

Finding the Fourth Proportional to 20,542,655.58, 28,348,516.15 and 11,375,101.50

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Solution

The fourth proportional to 20,542,655.58, 28,348,516.15 and 11,375,101.50 is: 15,697,447.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542,655.58 : 28,348,516.15 = 11,375,101.50 : x
  2. Step 2: Convert to fraction form
    20,542,655.58/28,348,516.15 = 11,375,101.50/x
  3. Step 3: Cross multiply
    20,542,655.58x = 28,348,516.15 × 11,375,101.50
  4. Step 4: Simplify right side
    20,542,655.58x = 322,467,248,580,639.19
  5. Step 5: Solve for x
    x = 322,467,248,580,639.19/20,542,655.58
  6. Step 6: Final answer
    x = 15,697,447.07

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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.