Home / 56,809,940.80-85,214,911.20-39,425,915.20

Finding the Fourth Proportional to 56,809,940.80, 85,214,911.20 and 39,425,915.20

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Solution

The fourth proportional to 56,809,940.80, 85,214,911.20 and 39,425,915.20 is: 59,138,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,809,940.80 : 85,214,911.20 = 39,425,915.20 : x
  2. Step 2: Convert to fraction form
    56,809,940.80/85,214,911.20 = 39,425,915.20/x
  3. Step 3: Cross multiply
    56,809,940.80x = 85,214,911.20 × 39,425,915.20
  4. Step 4: Simplify right side
    56,809,940.80x = 3,359,675,862,746,730.50
  5. Step 5: Solve for x
    x = 3,359,675,862,746,730.50/56,809,940.80
  6. Step 6: Final answer
    x = 59,138,872.80

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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.