Home / 12,826,156.40-17,700,382.22-7,319,421.62

Finding the Fourth Proportional to 12,826,156.40, 17,700,382.22 and 7,319,421.62

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Solution

The fourth proportional to 12,826,156.40, 17,700,382.22 and 7,319,421.62 is: 10,100,965.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,826,156.40 : 17,700,382.22 = 7,319,421.62 : x
  2. Step 2: Convert to fraction form
    12,826,156.40/17,700,382.22 = 7,319,421.62/x
  3. Step 3: Cross multiply
    12,826,156.40x = 17,700,382.22 × 7,319,421.62
  4. Step 4: Simplify right side
    12,826,156.40x = 129,556,560,178,232.58
  5. Step 5: Solve for x
    x = 129,556,560,178,232.58/12,826,156.40
  6. Step 6: Final answer
    x = 10,100,965.26

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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.