Home / 9,138,891.12-12,617,412.81-5,881,379.31

Finding the Fourth Proportional to 9,138,891.12, 12,617,412.81 and 5,881,379.31

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Solution

The fourth proportional to 9,138,891.12, 12,617,412.81 and 5,881,379.31 is: 8,119,999.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138,891.12 : 12,617,412.81 = 5,881,379.31 : x
  2. Step 2: Convert to fraction form
    9,138,891.12/12,617,412.81 = 5,881,379.31/x
  3. Step 3: Cross multiply
    9,138,891.12x = 12,617,412.81 × 5,881,379.31
  4. Step 4: Simplify right side
    9,138,891.12x = 74,207,790,646,462.95
  5. Step 5: Solve for x
    x = 74,207,790,646,462.95/9,138,891.12
  6. Step 6: Final answer
    x = 8,119,999.43

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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.