Home / 30,720,895.64-42,396,123.14-17,668,163.44

Finding the Fourth Proportional to 30,720,895.64, 42,396,123.14 and 17,668,163.44

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Solution

The fourth proportional to 30,720,895.64, 42,396,123.14 and 17,668,163.44 is: 24,382,805.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,720,895.64 : 42,396,123.14 = 17,668,163.44 : x
  2. Step 2: Convert to fraction form
    30,720,895.64/42,396,123.14 = 17,668,163.44/x
  3. Step 3: Cross multiply
    30,720,895.64x = 42,396,123.14 × 17,668,163.44
  4. Step 4: Simplify right side
    30,720,895.64x = 749,061,632,859,886.12
  5. Step 5: Solve for x
    x = 749,061,632,859,886.12/30,720,895.64
  6. Step 6: Final answer
    x = 24,382,805.82

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1.5x scale

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.