Home / 13,920,748.74-20,856,417.24-5,815,887.12

Finding the Fourth Proportional to 13,920,748.74, 20,856,417.24 and 5,815,887.12

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Solution

The fourth proportional to 13,920,748.74, 20,856,417.24 and 5,815,887.12 is: 8,713,508.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,920,748.74 : 20,856,417.24 = 5,815,887.12 : x
  2. Step 2: Convert to fraction form
    13,920,748.74/20,856,417.24 = 5,815,887.12/x
  3. Step 3: Cross multiply
    13,920,748.74x = 20,856,417.24 × 5,815,887.12
  4. Step 4: Simplify right side
    13,920,748.74x = 121,298,568,395,461.94
  5. Step 5: Solve for x
    x = 121,298,568,395,461.94/13,920,748.74
  6. Step 6: Final answer
    x = 8,713,508.93

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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.