Home / 8,490,680.70-12,736,021.05-5,656,328.70

Finding the Fourth Proportional to 8,490,680.70, 12,736,021.05 and 5,656,328.70

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Solution

The fourth proportional to 8,490,680.70, 12,736,021.05 and 5,656,328.70 is: 8,484,493.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490,680.70 : 12,736,021.05 = 5,656,328.70 : x
  2. Step 2: Convert to fraction form
    8,490,680.70/12,736,021.05 = 5,656,328.70/x
  3. Step 3: Cross multiply
    8,490,680.70x = 12,736,021.05 × 5,656,328.70
  4. Step 4: Simplify right side
    8,490,680.70x = 72,039,121,388,919.14
  5. Step 5: Solve for x
    x = 72,039,121,388,919.14/8,490,680.70
  6. Step 6: Final answer
    x = 8,484,493.05

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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.