Home / 20,563,846.68-28,381,233.96-13,124,720.16

Finding the Fourth Proportional to 20,563,846.68, 28,381,233.96 and 13,124,720.16

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Solution

The fourth proportional to 20,563,846.68, 28,381,233.96 and 13,124,720.16 is: 18,114,108.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563,846.68 : 28,381,233.96 = 13,124,720.16 : x
  2. Step 2: Convert to fraction form
    20,563,846.68/28,381,233.96 = 13,124,720.16/x
  3. Step 3: Cross multiply
    20,563,846.68x = 28,381,233.96 × 13,124,720.16
  4. Step 4: Simplify right side
    20,563,846.68x = 372,495,753,520,488.62
  5. Step 5: Solve for x
    x = 372,495,753,520,488.62/20,563,846.68
  6. Step 6: Final answer
    x = 18,114,108.67

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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.