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Finding the Fourth Proportional to 68,954,829.70, 103,432,244.55 and 30,575,604.10

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Solution

The fourth proportional to 68,954,829.70, 103,432,244.55 and 30,575,604.10 is: 45,863,406.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,954,829.70 : 103,432,244.55 = 30,575,604.10 : x
  2. Step 2: Convert to fraction form
    68,954,829.70/103,432,244.55 = 30,575,604.10/x
  3. Step 3: Cross multiply
    68,954,829.70x = 103,432,244.55 × 30,575,604.10
  4. Step 4: Simplify right side
    68,954,829.70x = 3,162,503,360,535,182.50
  5. Step 5: Solve for x
    x = 3,162,503,360,535,182.50/68,954,829.70
  6. Step 6: Final answer
    x = 45,863,406.15

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Similar ratio
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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.