Home / 39,281,902.38-54,210,715.29-21,878,255.34

Finding the Fourth Proportional to 39,281,902.38, 54,210,715.29 and 21,878,255.34

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Solution

The fourth proportional to 39,281,902.38, 54,210,715.29 and 21,878,255.34 is: 30,192,933.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,281,902.38 : 54,210,715.29 = 21,878,255.34 : x
  2. Step 2: Convert to fraction form
    39,281,902.38/54,210,715.29 = 21,878,255.34/x
  3. Step 3: Cross multiply
    39,281,902.38x = 54,210,715.29 × 21,878,255.34
  4. Step 4: Simplify right side
    39,281,902.38x = 1,186,035,871,278,662
  5. Step 5: Solve for x
    x = 1,186,035,871,278,662/39,281,902.38
  6. Step 6: Final answer
    x = 30,192,933.63

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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.