Home / 285,954,819.12-429,077,095.20-130,491,398.88

Finding the Fourth Proportional to 285,954,819.12, 429,077,095.20 and 130,491,398.88

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Solution

The fourth proportional to 285,954,819.12, 429,077,095.20 and 130,491,398.88 is: 195,803,206.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,954,819.12 : 429,077,095.20 = 130,491,398.88 : x
  2. Step 2: Convert to fraction form
    285,954,819.12/429,077,095.20 = 130,491,398.88/x
  3. Step 3: Cross multiply
    285,954,819.12x = 429,077,095.20 × 130,491,398.88
  4. Step 4: Simplify right side
    285,954,819.12x = 55,990,870,380,014,928
  5. Step 5: Solve for x
    x = 55,990,870,380,014,928/285,954,819.12
  6. Step 6: Final answer
    x = 195,803,206.09

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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.