Home / 8,348,539.20-12,522,808.80-6,456,638.40

Finding the Fourth Proportional to 8,348,539.20, 12,522,808.80 and 6,456,638.40

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Solution

The fourth proportional to 8,348,539.20, 12,522,808.80 and 6,456,638.40 is: 9,684,957.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348,539.20 : 12,522,808.80 = 6,456,638.40 : x
  2. Step 2: Convert to fraction form
    8,348,539.20/12,522,808.80 = 6,456,638.40/x
  3. Step 3: Cross multiply
    8,348,539.20x = 12,522,808.80 × 6,456,638.40
  4. Step 4: Simplify right side
    8,348,539.20x = 80,855,248,173,937.92
  5. Step 5: Solve for x
    x = 80,855,248,173,937.92/8,348,539.20
  6. Step 6: Final answer
    x = 9,684,957.60

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Similar ratio
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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.