Home / 74,863,984.80-112,295,977.20-71,887,915.20

Finding the Fourth Proportional to 74,863,984.80, 112,295,977.20 and 71,887,915.20

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Solution

The fourth proportional to 74,863,984.80, 112,295,977.20 and 71,887,915.20 is: 107,831,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,863,984.80 : 112,295,977.20 = 71,887,915.20 : x
  2. Step 2: Convert to fraction form
    74,863,984.80/112,295,977.20 = 71,887,915.20/x
  3. Step 3: Cross multiply
    74,863,984.80x = 112,295,977.20 × 71,887,915.20
  4. Step 4: Simplify right side
    74,863,984.80x = 8,072,723,686,254,734
  5. Step 5: Solve for x
    x = 8,072,723,686,254,734/74,863,984.80
  6. Step 6: Final answer
    x = 107,831,872.80

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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.