Home / 8,321,386.80-12,482,080.20-6,809,732.40

Finding the Fourth Proportional to 8,321,386.80, 12,482,080.20 and 6,809,732.40

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Solution

The fourth proportional to 8,321,386.80, 12,482,080.20 and 6,809,732.40 is: 10,214,598.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,386.80 : 12,482,080.20 = 6,809,732.40 : x
  2. Step 2: Convert to fraction form
    8,321,386.80/12,482,080.20 = 6,809,732.40/x
  3. Step 3: Cross multiply
    8,321,386.80x = 12,482,080.20 × 6,809,732.40
  4. Step 4: Simplify right side
    8,321,386.80x = 84,999,625,957,338.48
  5. Step 5: Solve for x
    x = 84,999,625,957,338.48/8,321,386.80
  6. Step 6: Final answer
    x = 10,214,598.60

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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.