Home / 8,085,354.80-12,128,032.20-6,650,464.10

Finding the Fourth Proportional to 8,085,354.80, 12,128,032.20 and 6,650,464.10

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Solution

The fourth proportional to 8,085,354.80, 12,128,032.20 and 6,650,464.10 is: 9,975,696.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,354.80 : 12,128,032.20 = 6,650,464.10 : x
  2. Step 2: Convert to fraction form
    8,085,354.80/12,128,032.20 = 6,650,464.10/x
  3. Step 3: Cross multiply
    8,085,354.80x = 12,128,032.20 × 6,650,464.10
  4. Step 4: Simplify right side
    8,085,354.80x = 80,657,042,749,744.02
  5. Step 5: Solve for x
    x = 80,657,042,749,744.02/8,085,354.80
  6. Step 6: Final answer
    x = 9,975,696.15

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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.