Home / 28,219,145.20-42,328,717.80-9,051,839.80

Finding the Fourth Proportional to 28,219,145.20, 42,328,717.80 and 9,051,839.80

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Solution

The fourth proportional to 28,219,145.20, 42,328,717.80 and 9,051,839.80 is: 13,577,759.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219,145.20 : 42,328,717.80 = 9,051,839.80 : x
  2. Step 2: Convert to fraction form
    28,219,145.20/42,328,717.80 = 9,051,839.80/x
  3. Step 3: Cross multiply
    28,219,145.20x = 42,328,717.80 × 9,051,839.80
  4. Step 4: Simplify right side
    28,219,145.20x = 383,152,772,465,008.44
  5. Step 5: Solve for x
    x = 383,152,772,465,008.44/28,219,145.20
  6. Step 6: Final answer
    x = 13,577,759.70

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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.