Home / 6,520,139.80-9,780,161.10-1,971,179.80

Finding the Fourth Proportional to 6,520,139.80, 9,780,161.10 and 1,971,179.80

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Solution

The fourth proportional to 6,520,139.80, 9,780,161.10 and 1,971,179.80 is: 2,956,755.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520,139.80 : 9,780,161.10 = 1,971,179.80 : x
  2. Step 2: Convert to fraction form
    6,520,139.80/9,780,161.10 = 1,971,179.80/x
  3. Step 3: Cross multiply
    6,520,139.80x = 9,780,161.10 × 1,971,179.80
  4. Step 4: Simplify right side
    6,520,139.80x = 19,278,456,001,065.78
  5. Step 5: Solve for x
    x = 19,278,456,001,065.78/6,520,139.80
  6. Step 6: Final answer
    x = 2,956,755.01

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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.