Home / 393,382,261.17-542,853,300.33-217,166,480.33

Finding the Fourth Proportional to 393,382,261.17, 542,853,300.33 and 217,166,480.33

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Solution

The fourth proportional to 393,382,261.17, 542,853,300.33 and 217,166,480.33 is: 299,681,892.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,382,261.17 : 542,853,300.33 = 217,166,480.33 : x
  2. Step 2: Convert to fraction form
    393,382,261.17/542,853,300.33 = 217,166,480.33/x
  3. Step 3: Cross multiply
    393,382,261.17x = 542,853,300.33 × 217,166,480.33
  4. Step 4: Simplify right side
    393,382,261.17x = 117,889,540,565,476,256
  5. Step 5: Solve for x
    x = 117,889,540,565,476,256/393,382,261.17
  6. Step 6: Final answer
    x = 299,681,892.66

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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.