Home / 8,620,401.85-11,886,489.97-7,045,646.90

Finding the Fourth Proportional to 8,620,401.85, 11,886,489.97 and 7,045,646.90

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Solution

The fourth proportional to 8,620,401.85, 11,886,489.97 and 7,045,646.90 is: 9,715,093.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620,401.85 : 11,886,489.97 = 7,045,646.90 : x
  2. Step 2: Convert to fraction form
    8,620,401.85/11,886,489.97 = 7,045,646.90/x
  3. Step 3: Cross multiply
    8,620,401.85x = 11,886,489.97 × 7,045,646.90
  4. Step 4: Simplify right side
    8,620,401.85x = 83,748,011,131,965.02
  5. Step 5: Solve for x
    x = 83,748,011,131,965.02/8,620,401.85
  6. Step 6: Final answer
    x = 9,715,093.64

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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.