Home / 5,561,138.10-8,341,707.15-4,478,718.90

Finding the Fourth Proportional to 5,561,138.10, 8,341,707.15 and 4,478,718.90

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Solution

The fourth proportional to 5,561,138.10, 8,341,707.15 and 4,478,718.90 is: 6,718,078.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,561,138.10 : 8,341,707.15 = 4,478,718.90 : x
  2. Step 2: Convert to fraction form
    5,561,138.10/8,341,707.15 = 4,478,718.90/x
  3. Step 3: Cross multiply
    5,561,138.10x = 8,341,707.15 × 4,478,718.90
  4. Step 4: Simplify right side
    5,561,138.10x = 37,360,161,470,970.14
  5. Step 5: Solve for x
    x = 37,360,161,470,970.14/5,561,138.10
  6. Step 6: Final answer
    x = 6,718,078.35

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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.