Home / 70,284,974.40-105,315,487.20-52,145,121.60

Finding the Fourth Proportional to 70,284,974.40, 105,315,487.20 and 52,145,121.60

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Solution

The fourth proportional to 70,284,974.40, 105,315,487.20 and 52,145,121.60 is: 78,134,607.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,284,974.40 : 105,315,487.20 = 52,145,121.60 : x
  2. Step 2: Convert to fraction form
    70,284,974.40/105,315,487.20 = 52,145,121.60/x
  3. Step 3: Cross multiply
    70,284,974.40x = 105,315,487.20 × 52,145,121.60
  4. Step 4: Simplify right side
    70,284,974.40x = 5,491,688,886,407,244
  5. Step 5: Solve for x
    x = 5,491,688,886,407,244/70,284,974.40
  6. Step 6: Final answer
    x = 78,134,607.48

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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.