Home / 68,130,812.70-102,028,257.45-45,288,035.10

Finding the Fourth Proportional to 68,130,812.70, 102,028,257.45 and 45,288,035.10

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Solution

The fourth proportional to 68,130,812.70, 102,028,257.45 and 45,288,035.10 is: 67,820,404.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,130,812.70 : 102,028,257.45 = 45,288,035.10 : x
  2. Step 2: Convert to fraction form
    68,130,812.70/102,028,257.45 = 45,288,035.10/x
  3. Step 3: Cross multiply
    68,130,812.70x = 102,028,257.45 × 45,288,035.10
  4. Step 4: Simplify right side
    68,130,812.70x = 4,620,659,304,587,437
  5. Step 5: Solve for x
    x = 4,620,659,304,587,437/68,130,812.70
  6. Step 6: Final answer
    x = 67,820,404.92

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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.