Home / 12,822,891.76-19,217,590.08-9,779,112.64

Finding the Fourth Proportional to 12,822,891.76, 19,217,590.08 and 9,779,112.64

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Solution

The fourth proportional to 12,822,891.76, 19,217,590.08 and 9,779,112.64 is: 14,655,896.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,822,891.76 : 19,217,590.08 = 9,779,112.64 : x
  2. Step 2: Convert to fraction form
    12,822,891.76/19,217,590.08 = 9,779,112.64/x
  3. Step 3: Cross multiply
    12,822,891.76x = 19,217,590.08 × 9,779,112.64
  4. Step 4: Simplify right side
    12,822,891.76x = 187,930,978,061,666.59
  5. Step 5: Solve for x
    x = 187,930,978,061,666.59/12,822,891.76
  6. Step 6: Final answer
    x = 14,655,896.78

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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.