Home / 28,988,468.80-43,482,703.20-18,910,772.80

Finding the Fourth Proportional to 28,988,468.80, 43,482,703.20 and 18,910,772.80

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Solution

The fourth proportional to 28,988,468.80, 43,482,703.20 and 18,910,772.80 is: 28,366,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988,468.80 : 43,482,703.20 = 18,910,772.80 : x
  2. Step 2: Convert to fraction form
    28,988,468.80/43,482,703.20 = 18,910,772.80/x
  3. Step 3: Cross multiply
    28,988,468.80x = 43,482,703.20 × 18,910,772.80
  4. Step 4: Simplify right side
    28,988,468.80x = 822,291,520,945,033
  5. Step 5: Solve for x
    x = 822,291,520,945,033/28,988,468.80
  6. Step 6: Final answer
    x = 28,366,159.20

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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.