Home / 7,679,421.12-11,520,849.82-2,887,151.91

Finding the Fourth Proportional to 7,679,421.12, 11,520,849.82 and 2,887,151.91

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Solution

The fourth proportional to 7,679,421.12, 11,520,849.82 and 2,887,151.91 is: 4,331,373.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679,421.12 : 11,520,849.82 = 2,887,151.91 : x
  2. Step 2: Convert to fraction form
    7,679,421.12/11,520,849.82 = 2,887,151.91/x
  3. Step 3: Cross multiply
    7,679,421.12x = 11,520,849.82 × 2,887,151.91
  4. Step 4: Simplify right side
    7,679,421.12x = 33,262,443,562,636.16
  5. Step 5: Solve for x
    x = 33,262,443,562,636.16/7,679,421.12
  6. Step 6: Final answer
    x = 4,331,373.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.