Home / 12,861,619.80-17,748,575.58-7,279,746.54

Finding the Fourth Proportional to 12,861,619.80, 17,748,575.58 and 7,279,746.54

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Solution

The fourth proportional to 12,861,619.80, 17,748,575.58 and 7,279,746.54 is: 10,045,790.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861,619.80 : 17,748,575.58 = 7,279,746.54 : x
  2. Step 2: Convert to fraction form
    12,861,619.80/17,748,575.58 = 7,279,746.54/x
  3. Step 3: Cross multiply
    12,861,619.80x = 17,748,575.58 × 7,279,746.54
  4. Step 4: Simplify right side
    12,861,619.80x = 129,205,131,668,433.48
  5. Step 5: Solve for x
    x = 129,205,131,668,433.48/12,861,619.80
  6. Step 6: Final answer
    x = 10,045,790.01

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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.