Home / 8,845,939.74-12,207,789.63-4,978,711.38

Finding the Fourth Proportional to 8,845,939.74, 12,207,789.63 and 4,978,711.38

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Solution

The fourth proportional to 8,845,939.74, 12,207,789.63 and 4,978,711.38 is: 6,870,842.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,845,939.74 : 12,207,789.63 = 4,978,711.38 : x
  2. Step 2: Convert to fraction form
    8,845,939.74/12,207,789.63 = 4,978,711.38/x
  3. Step 3: Cross multiply
    8,845,939.74x = 12,207,789.63 × 4,978,711.38
  4. Step 4: Simplify right side
    8,845,939.74x = 60,779,061,155,526.99
  5. Step 5: Solve for x
    x = 60,779,061,155,526.99/8,845,939.74
  6. Step 6: Final answer
    x = 6,870,842.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.