Home / 155,153,640.40-214,113,510.04-85,541,517.88

Finding the Fourth Proportional to 155,153,640.40, 214,113,510.04 and 85,541,517.88

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Solution

The fourth proportional to 155,153,640.40, 214,113,510.04 and 85,541,517.88 is: 118,048,114.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,153,640.40 : 214,113,510.04 = 85,541,517.88 : x
  2. Step 2: Convert to fraction form
    155,153,640.40/214,113,510.04 = 85,541,517.88/x
  3. Step 3: Cross multiply
    155,153,640.40x = 214,113,510.04 × 85,541,517.88
  4. Step 4: Simplify right side
    155,153,640.40x = 18,315,594,647,436,216
  5. Step 5: Solve for x
    x = 18,315,594,647,436,216/155,153,640.40
  6. Step 6: Final answer
    x = 118,048,114.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.