Home / 7,045,869.12-9,723,899.04-3,990,626.88

Finding the Fourth Proportional to 7,045,869.12, 9,723,899.04 and 3,990,626.88

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Solution

The fourth proportional to 7,045,869.12, 9,723,899.04 and 3,990,626.88 is: 5,507,404.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045,869.12 : 9,723,899.04 = 3,990,626.88 : x
  2. Step 2: Convert to fraction form
    7,045,869.12/9,723,899.04 = 3,990,626.88/x
  3. Step 3: Cross multiply
    7,045,869.12x = 9,723,899.04 × 3,990,626.88
  4. Step 4: Simplify right side
    7,045,869.12x = 38,804,452,887,430.19
  5. Step 5: Solve for x
    x = 38,804,452,887,430.19/7,045,869.12
  6. Step 6: Final answer
    x = 5,507,404.73

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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.