Home / 6,840,863.20-9,428,885.88-5,186,462.45

Finding the Fourth Proportional to 6,840,863.20, 9,428,885.88 and 5,186,462.45

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Solution

The fourth proportional to 6,840,863.20, 9,428,885.88 and 5,186,462.45 is: 7,148,595.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,840,863.20 : 9,428,885.88 = 5,186,462.45 : x
  2. Step 2: Convert to fraction form
    6,840,863.20/9,428,885.88 = 5,186,462.45/x
  3. Step 3: Cross multiply
    6,840,863.20x = 9,428,885.88 × 5,186,462.45
  4. Step 4: Simplify right side
    6,840,863.20x = 48,902,562,514,810.78
  5. Step 5: Solve for x
    x = 48,902,562,514,810.78/6,840,863.20
  6. Step 6: Final answer
    x = 7,148,595.30

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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.