Home / 9,990,217.42-13,786,472.90-5,406,538.79

Finding the Fourth Proportional to 9,990,217.42, 13,786,472.90 and 5,406,538.79

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Solution

The fourth proportional to 9,990,217.42, 13,786,472.90 and 5,406,538.79 is: 7,461,008.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990,217.42 : 13,786,472.90 = 5,406,538.79 : x
  2. Step 2: Convert to fraction form
    9,990,217.42/13,786,472.90 = 5,406,538.79/x
  3. Step 3: Cross multiply
    9,990,217.42x = 13,786,472.90 × 5,406,538.79
  4. Step 4: Simplify right side
    9,990,217.42x = 74,537,100,559,116.33
  5. Step 5: Solve for x
    x = 74,537,100,559,116.33/9,990,217.42
  6. Step 6: Final answer
    x = 7,461,008.85

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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.