Home / 11,545,643.12-15,932,749.08-6,389,001.20

Finding the Fourth Proportional to 11,545,643.12, 15,932,749.08 and 6,389,001.20

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Solution

The fourth proportional to 11,545,643.12, 15,932,749.08 and 6,389,001.20 is: 8,816,689.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,545,643.12 : 15,932,749.08 = 6,389,001.20 : x
  2. Step 2: Convert to fraction form
    11,545,643.12/15,932,749.08 = 6,389,001.20/x
  3. Step 3: Cross multiply
    11,545,643.12x = 15,932,749.08 × 6,389,001.20
  4. Step 4: Simplify right side
    11,545,643.12x = 101,794,352,991,418.91
  5. Step 5: Solve for x
    x = 101,794,352,991,418.91/11,545,643.12
  6. Step 6: Final answer
    x = 8,816,689.72

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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.