Home / 7,120,927.30-9,826,825.36-3,857,718.69

Finding the Fourth Proportional to 7,120,927.30, 9,826,825.36 and 3,857,718.69

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Solution

The fourth proportional to 7,120,927.30, 9,826,825.36 and 3,857,718.69 is: 5,323,622.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120,927.30 : 9,826,825.36 = 3,857,718.69 : x
  2. Step 2: Convert to fraction form
    7,120,927.30/9,826,825.36 = 3,857,718.69/x
  3. Step 3: Cross multiply
    7,120,927.30x = 9,826,825.36 × 3,857,718.69
  4. Step 4: Simplify right side
    7,120,927.30x = 37,909,127,799,920.05
  5. Step 5: Solve for x
    x = 37,909,127,799,920.05/7,120,927.30
  6. Step 6: Final answer
    x = 5,323,622.36

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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.