Home / 38,701,570.78-53,396,142.14-21,953,552.12

Finding the Fourth Proportional to 38,701,570.78, 53,396,142.14 and 21,953,552.12

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Solution

The fourth proportional to 38,701,570.78, 53,396,142.14 and 21,953,552.12 is: 30,289,080.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,701,570.78 : 53,396,142.14 = 21,953,552.12 : x
  2. Step 2: Convert to fraction form
    38,701,570.78/53,396,142.14 = 21,953,552.12/x
  3. Step 3: Cross multiply
    38,701,570.78x = 53,396,142.14 × 21,953,552.12
  4. Step 4: Simplify right side
    38,701,570.78x = 1,172,234,989,465,557
  5. Step 5: Solve for x
    x = 1,172,234,989,465,557/38,701,570.78
  6. Step 6: Final answer
    x = 30,289,080.41

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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.