Home / 391,427,150.70-540,171,603.43-230,498,155.38

Finding the Fourth Proportional to 391,427,150.70, 540,171,603.43 and 230,498,155.38

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Solution

The fourth proportional to 391,427,150.70, 540,171,603.43 and 230,498,155.38 is: 318,088,711.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,427,150.70 : 540,171,603.43 = 230,498,155.38 : x
  2. Step 2: Convert to fraction form
    391,427,150.70/540,171,603.43 = 230,498,155.38/x
  3. Step 3: Cross multiply
    391,427,150.70x = 540,171,603.43 × 230,498,155.38
  4. Step 4: Simplify right side
    391,427,150.70x = 124,508,558,179,271,872
  5. Step 5: Solve for x
    x = 124,508,558,179,271,872/391,427,150.70
  6. Step 6: Final answer
    x = 318,088,711.93

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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.