Home / 205,821,815.28-308,667,175.56-67,615,341.72

Finding the Fourth Proportional to 205,821,815.28, 308,667,175.56 and 67,615,341.72

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Solution

The fourth proportional to 205,821,815.28, 308,667,175.56 and 67,615,341.72 is: 101,401,479.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,821,815.28 : 308,667,175.56 = 67,615,341.72 : x
  2. Step 2: Convert to fraction form
    205,821,815.28/308,667,175.56 = 67,615,341.72/x
  3. Step 3: Cross multiply
    205,821,815.28x = 308,667,175.56 × 67,615,341.72
  4. Step 4: Simplify right side
    205,821,815.28x = 20,870,636,553,236,632
  5. Step 5: Solve for x
    x = 20,870,636,553,236,632/205,821,815.28
  6. Step 6: Final answer
    x = 101,401,479.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.