Home / 7,138,425.69-9,849,988.01-4,082,049.45

Finding the Fourth Proportional to 7,138,425.69, 9,849,988.01 and 4,082,049.45

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Solution

The fourth proportional to 7,138,425.69, 9,849,988.01 and 4,082,049.45 is: 5,632,633.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138,425.69 : 9,849,988.01 = 4,082,049.45 : x
  2. Step 2: Convert to fraction form
    7,138,425.69/9,849,988.01 = 4,082,049.45/x
  3. Step 3: Cross multiply
    7,138,425.69x = 9,849,988.01 × 4,082,049.45
  4. Step 4: Simplify right side
    7,138,425.69x = 40,208,138,148,932.22
  5. Step 5: Solve for x
    x = 40,208,138,148,932.22/7,138,425.69
  6. Step 6: Final answer
    x = 5,632,633.85

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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.