Home / 390,497,272.38-538,894,468.53-214,283,726.37

Finding the Fourth Proportional to 390,497,272.38, 538,894,468.53 and 214,283,726.37

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Solution

The fourth proportional to 390,497,272.38, 538,894,468.53 and 214,283,726.37 is: 295,716,060.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,497,272.38 : 538,894,468.53 = 214,283,726.37 : x
  2. Step 2: Convert to fraction form
    390,497,272.38/538,894,468.53 = 214,283,726.37/x
  3. Step 3: Cross multiply
    390,497,272.38x = 538,894,468.53 × 214,283,726.37
  4. Step 4: Simplify right side
    390,497,272.38x = 115,476,314,836,789,088
  5. Step 5: Solve for x
    x = 115,476,314,836,789,088/390,497,272.38
  6. Step 6: Final answer
    x = 295,716,060.02

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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.