Home / 8,554,500.80-12,831,751.20-7,987,630.40

Finding the Fourth Proportional to 8,554,500.80, 12,831,751.20 and 7,987,630.40

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Solution

The fourth proportional to 8,554,500.80, 12,831,751.20 and 7,987,630.40 is: 11,981,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,554,500.80 : 12,831,751.20 = 7,987,630.40 : x
  2. Step 2: Convert to fraction form
    8,554,500.80/12,831,751.20 = 7,987,630.40/x
  3. Step 3: Cross multiply
    8,554,500.80x = 12,831,751.20 × 7,987,630.40
  4. Step 4: Simplify right side
    8,554,500.80x = 102,495,285,970,356.48
  5. Step 5: Solve for x
    x = 102,495,285,970,356.48/8,554,500.80
  6. Step 6: Final answer
    x = 11,981,445.60

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1.5x scale

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.