Home / 360,426,786.14-540,660,990.72-139,099,274.66

Finding the Fourth Proportional to 360,426,786.14, 540,660,990.72 and 139,099,274.66

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Solution

The fourth proportional to 360,426,786.14, 540,660,990.72 and 139,099,274.66 is: 208,656,943.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,426,786.14 : 540,660,990.72 = 139,099,274.66 : x
  2. Step 2: Convert to fraction form
    360,426,786.14/540,660,990.72 = 139,099,274.66/x
  3. Step 3: Cross multiply
    360,426,786.14x = 540,660,990.72 × 139,099,274.66
  4. Step 4: Simplify right side
    360,426,786.14x = 75,205,551,646,108,992
  5. Step 5: Solve for x
    x = 75,205,551,646,108,992/360,426,786.14
  6. Step 6: Final answer
    x = 208,656,943.76

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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.