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Finding the Fourth Proportional to 70,682,729.80, 106,024,094.70 and 57,245,801.80

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Solution

The fourth proportional to 70,682,729.80, 106,024,094.70 and 57,245,801.80 is: 85,868,702.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,682,729.80 : 106,024,094.70 = 57,245,801.80 : x
  2. Step 2: Convert to fraction form
    70,682,729.80/106,024,094.70 = 57,245,801.80/x
  3. Step 3: Cross multiply
    70,682,729.80x = 106,024,094.70 × 57,245,801.80
  4. Step 4: Simplify right side
    70,682,729.80x = 6,069,434,311,220,630
  5. Step 5: Solve for x
    x = 6,069,434,311,220,630/70,682,729.80
  6. Step 6: Final answer
    x = 85,868,702.70

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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.