Home / 9,990,219.42-13,786,475.66-5,406,540.80

Finding the Fourth Proportional to 9,990,219.42, 13,786,475.66 and 5,406,540.80

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Solution

The fourth proportional to 9,990,219.42, 13,786,475.66 and 5,406,540.80 is: 7,461,011.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990,219.42 : 13,786,475.66 = 5,406,540.80 : x
  2. Step 2: Convert to fraction form
    9,990,219.42/13,786,475.66 = 5,406,540.80/x
  3. Step 3: Cross multiply
    9,990,219.42x = 13,786,475.66 × 5,406,540.80
  4. Step 4: Simplify right side
    9,990,219.42x = 74,537,143,143,996.92
  5. Step 5: Solve for x
    x = 74,537,143,143,996.92/9,990,219.42
  6. Step 6: Final answer
    x = 7,461,011.62

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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.