Home / 7,169,327.20-10,753,990.80-6,385,506.40

Finding the Fourth Proportional to 7,169,327.20, 10,753,990.80 and 6,385,506.40

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Solution

The fourth proportional to 7,169,327.20, 10,753,990.80 and 6,385,506.40 is: 9,578,259.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,169,327.20 : 10,753,990.80 = 6,385,506.40 : x
  2. Step 2: Convert to fraction form
    7,169,327.20/10,753,990.80 = 6,385,506.40/x
  3. Step 3: Cross multiply
    7,169,327.20x = 10,753,990.80 × 6,385,506.40
  4. Step 4: Simplify right side
    7,169,327.20x = 68,669,677,078,941.12
  5. Step 5: Solve for x
    x = 68,669,677,078,941.12/7,169,327.20
  6. Step 6: Final answer
    x = 9,578,259.60

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Double scale
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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.