Home / 6,520,140.30-9,780,161.85-1,971,180.30

Finding the Fourth Proportional to 6,520,140.30, 9,780,161.85 and 1,971,180.30

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Solution

The fourth proportional to 6,520,140.30, 9,780,161.85 and 1,971,180.30 is: 2,956,755.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520,140.30 : 9,780,161.85 = 1,971,180.30 : x
  2. Step 2: Convert to fraction form
    6,520,140.30/9,780,161.85 = 1,971,180.30/x
  3. Step 3: Cross multiply
    6,520,140.30x = 9,780,161.85 × 1,971,180.30
  4. Step 4: Simplify right side
    6,520,140.30x = 19,278,462,369,531.55
  5. Step 5: Solve for x
    x = 19,278,462,369,531.55/6,520,140.30
  6. Step 6: Final answer
    x = 2,956,755.76

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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.