Home / 70,215,074.28-105,284,740.14-31,855,660.20

Finding the Fourth Proportional to 70,215,074.28, 105,284,740.14 and 31,855,660.20

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Solution

The fourth proportional to 70,215,074.28, 105,284,740.14 and 31,855,660.20 is: 47,766,308.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,215,074.28 : 105,284,740.14 = 31,855,660.20 : x
  2. Step 2: Convert to fraction form
    70,215,074.28/105,284,740.14 = 31,855,660.20/x
  3. Step 3: Cross multiply
    70,215,074.28x = 105,284,740.14 × 31,855,660.20
  4. Step 4: Simplify right side
    70,215,074.28x = 3,353,914,906,145,140.50
  5. Step 5: Solve for x
    x = 3,353,914,906,145,140.50/70,215,074.28
  6. Step 6: Final answer
    x = 47,766,308.60

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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.