Home / 7,679,420.12-11,520,848.32-2,887,150.91

Finding the Fourth Proportional to 7,679,420.12, 11,520,848.32 and 2,887,150.91

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Solution

The fourth proportional to 7,679,420.12, 11,520,848.32 and 2,887,150.91 is: 4,331,372.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679,420.12 : 11,520,848.32 = 2,887,150.91 : x
  2. Step 2: Convert to fraction form
    7,679,420.12/11,520,848.32 = 2,887,150.91/x
  3. Step 3: Cross multiply
    7,679,420.12x = 11,520,848.32 × 2,887,150.91
  4. Step 4: Simplify right side
    7,679,420.12x = 33,262,427,646,237.85
  5. Step 5: Solve for x
    x = 33,262,427,646,237.85/7,679,420.12
  6. Step 6: Final answer
    x = 4,331,372.31

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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.