Home / 5,172,480.15-7,138,244.07-2,880,640.83

Finding the Fourth Proportional to 5,172,480.15, 7,138,244.07 and 2,880,640.83

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Solution

The fourth proportional to 5,172,480.15, 7,138,244.07 and 2,880,640.83 is: 3,975,407.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172,480.15 : 7,138,244.07 = 2,880,640.83 : x
  2. Step 2: Convert to fraction form
    5,172,480.15/7,138,244.07 = 2,880,640.83/x
  3. Step 3: Cross multiply
    5,172,480.15x = 7,138,244.07 × 2,880,640.83
  4. Step 4: Simplify right side
    5,172,480.15x = 20,562,717,322,547.38
  5. Step 5: Solve for x
    x = 20,562,717,322,547.38/5,172,480.15
  6. Step 6: Final answer
    x = 3,975,407.68

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.