Home / 20,459,604.70-28,232,244.38-11,291,655.34

Finding the Fourth Proportional to 20,459,604.70, 28,232,244.38 and 11,291,655.34

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Solution

The fourth proportional to 20,459,604.70, 28,232,244.38 and 11,291,655.34 is: 15,581,374.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,459,604.70 : 28,232,244.38 = 11,291,655.34 : x
  2. Step 2: Convert to fraction form
    20,459,604.70/28,232,244.38 = 11,291,655.34/x
  3. Step 3: Cross multiply
    20,459,604.70x = 28,232,244.38 × 11,291,655.34
  4. Step 4: Simplify right side
    20,459,604.70x = 318,788,773,013,612
  5. Step 5: Solve for x
    x = 318,788,773,013,612/20,459,604.70
  6. Step 6: Final answer
    x = 15,581,374.99

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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.