Home / 28,988,475.80-43,482,713.70-18,910,779.80

Finding the Fourth Proportional to 28,988,475.80, 43,482,713.70 and 18,910,779.80

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Solution

The fourth proportional to 28,988,475.80, 43,482,713.70 and 18,910,779.80 is: 28,366,169.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988,475.80 : 43,482,713.70 = 18,910,779.80 : x
  2. Step 2: Convert to fraction form
    28,988,475.80/43,482,713.70 = 18,910,779.80/x
  3. Step 3: Cross multiply
    28,988,475.80x = 43,482,713.70 × 18,910,779.80
  4. Step 4: Simplify right side
    28,988,475.80x = 822,292,023,887,143.38
  5. Step 5: Solve for x
    x = 822,292,023,887,143.38/28,988,475.80
  6. Step 6: Final answer
    x = 28,366,169.70

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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.