Home / 9,291,077.21-12,822,046.12-5,161,421.15

Finding the Fourth Proportional to 9,291,077.21, 12,822,046.12 and 5,161,421.15

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Solution

The fourth proportional to 9,291,077.21, 12,822,046.12 and 5,161,421.15 is: 7,122,960.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,291,077.21 : 12,822,046.12 = 5,161,421.15 : x
  2. Step 2: Convert to fraction form
    9,291,077.21/12,822,046.12 = 5,161,421.15/x
  3. Step 3: Cross multiply
    9,291,077.21x = 12,822,046.12 × 5,161,421.15
  4. Step 4: Simplify right side
    9,291,077.21x = 66,179,979,991,429.49
  5. Step 5: Solve for x
    x = 66,179,979,991,429.49/9,291,077.21
  6. Step 6: Final answer
    x = 7,122,960.94

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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.