Home / 30,720,894.64-42,396,121.76-17,668,162.44

Finding the Fourth Proportional to 30,720,894.64, 42,396,121.76 and 17,668,162.44

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Solution

The fourth proportional to 30,720,894.64, 42,396,121.76 and 17,668,162.44 is: 24,382,804.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,720,894.64 : 42,396,121.76 = 17,668,162.44 : x
  2. Step 2: Convert to fraction form
    30,720,894.64/42,396,121.76 = 17,668,162.44/x
  3. Step 3: Cross multiply
    30,720,894.64x = 42,396,121.76 × 17,668,162.44
  4. Step 4: Simplify right side
    30,720,894.64x = 749,061,566,081,698.75
  5. Step 5: Solve for x
    x = 749,061,566,081,698.75/30,720,894.64
  6. Step 6: Final answer
    x = 24,382,804.44

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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.