Home / 6,655,785.30-9,118,382.25-6,406,897.87

Finding the Fourth Proportional to 6,655,785.30, 9,118,382.25 and 6,406,897.87

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Solution

The fourth proportional to 6,655,785.30, 9,118,382.25 and 6,406,897.87 is: 8,777,408.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,655,785.30 : 9,118,382.25 = 6,406,897.87 : x
  2. Step 2: Convert to fraction form
    6,655,785.30/9,118,382.25 = 6,406,897.87/x
  3. Step 3: Cross multiply
    6,655,785.30x = 9,118,382.25 × 6,406,897.87
  4. Step 4: Simplify right side
    6,655,785.30x = 58,420,543,815,370.80
  5. Step 5: Solve for x
    x = 58,420,543,815,370.80/6,655,785.30
  6. Step 6: Final answer
    x = 8,777,408.10

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.