Home / 39,281,904.38-54,210,718.05-21,878,257.34

Finding the Fourth Proportional to 39,281,904.38, 54,210,718.05 and 21,878,257.34

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Solution

The fourth proportional to 39,281,904.38, 54,210,718.05 and 21,878,257.34 is: 30,192,936.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,281,904.38 : 54,210,718.05 = 21,878,257.34 : x
  2. Step 2: Convert to fraction form
    39,281,904.38/54,210,718.05 = 21,878,257.34/x
  3. Step 3: Cross multiply
    39,281,904.38x = 54,210,718.05 × 21,878,257.34
  4. Step 4: Simplify right side
    39,281,904.38x = 1,186,036,040,084,083
  5. Step 5: Solve for x
    x = 1,186,036,040,084,083/39,281,904.38
  6. Step 6: Final answer
    x = 30,192,936.39

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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.