Home / 221,289,490.77-305,517,315.18-140,866,859.91

Finding the Fourth Proportional to 221,289,490.77, 305,517,315.18 and 140,866,859.91

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Solution

The fourth proportional to 221,289,490.77, 305,517,315.18 and 140,866,859.91 is: 194,483,997.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,289,490.77 : 305,517,315.18 = 140,866,859.91 : x
  2. Step 2: Convert to fraction form
    221,289,490.77/305,517,315.18 = 140,866,859.91/x
  3. Step 3: Cross multiply
    221,289,490.77x = 305,517,315.18 × 140,866,859.91
  4. Step 4: Simplify right side
    221,289,490.77x = 43,037,264,837,540,376
  5. Step 5: Solve for x
    x = 43,037,264,837,540,376/221,289,490.77
  6. Step 6: Final answer
    x = 194,483,997.81

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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.