Home / 279,949,839.90-419,987,745.45-164,875,148.70

Finding the Fourth Proportional to 279,949,839.90, 419,987,745.45 and 164,875,148.70

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Solution

The fourth proportional to 279,949,839.90, 419,987,745.45 and 164,875,148.70 is: 247,349,818.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,949,839.90 : 419,987,745.45 = 164,875,148.70 : x
  2. Step 2: Convert to fraction form
    279,949,839.90/419,987,745.45 = 164,875,148.70/x
  3. Step 3: Cross multiply
    279,949,839.90x = 419,987,745.45 × 164,875,148.70
  4. Step 4: Simplify right side
    279,949,839.90x = 69,245,541,983,246,488
  5. Step 5: Solve for x
    x = 69,245,541,983,246,488/279,949,839.90
  6. Step 6: Final answer
    x = 247,349,818.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.