Home / 6,421,116.15-8,861,039.28-3,520,532.07

Finding the Fourth Proportional to 6,421,116.15, 8,861,039.28 and 3,520,532.07

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Solution

The fourth proportional to 6,421,116.15, 8,861,039.28 and 3,520,532.07 is: 4,858,278.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421,116.15 : 8,861,039.28 = 3,520,532.07 : x
  2. Step 2: Convert to fraction form
    6,421,116.15/8,861,039.28 = 3,520,532.07/x
  3. Step 3: Cross multiply
    6,421,116.15x = 8,861,039.28 × 3,520,532.07
  4. Step 4: Simplify right side
    6,421,116.15x = 31,195,572,958,769.71
  5. Step 5: Solve for x
    x = 31,195,572,958,769.71/6,421,116.15
  6. Step 6: Final answer
    x = 4,858,278.88

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.