Home / 8,578,525.51-12,863,864.22-5,121,834.31

Finding the Fourth Proportional to 8,578,525.51, 12,863,864.22 and 5,121,834.31

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Solution

The fourth proportional to 8,578,525.51, 12,863,864.22 and 5,121,834.31 is: 7,680,408.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578,525.51 : 12,863,864.22 = 5,121,834.31 : x
  2. Step 2: Convert to fraction form
    8,578,525.51/12,863,864.22 = 5,121,834.31/x
  3. Step 3: Cross multiply
    8,578,525.51x = 12,863,864.22 × 5,121,834.31
  4. Step 4: Simplify right side
    8,578,525.51x = 65,886,581,121,177.38
  5. Step 5: Solve for x
    x = 65,886,581,121,177.38/8,578,525.51
  6. Step 6: Final answer
    x = 7,680,408.60

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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.