Home / 20,159,205.40-30,250,617.90-7,381,001.80

Finding the Fourth Proportional to 20,159,205.40, 30,250,617.90 and 7,381,001.80

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Solution

The fourth proportional to 20,159,205.40, 30,250,617.90 and 7,381,001.80 is: 11,075,826.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,159,205.40 : 30,250,617.90 = 7,381,001.80 : x
  2. Step 2: Convert to fraction form
    20,159,205.40/30,250,617.90 = 7,381,001.80/x
  3. Step 3: Cross multiply
    20,159,205.40x = 30,250,617.90 × 7,381,001.80
  4. Step 4: Simplify right side
    20,159,205.40x = 223,279,865,171,012.22
  5. Step 5: Solve for x
    x = 223,279,865,171,012.22/20,159,205.40
  6. Step 6: Final answer
    x = 11,075,826.69

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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.