Home / 100,927,143.85-139,279,519.53-54,517,418.28

Finding the Fourth Proportional to 100,927,143.85, 139,279,519.53 and 54,517,418.28

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Solution

The fourth proportional to 100,927,143.85, 139,279,519.53 and 54,517,418.28 is: 75,234,070.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,927,143.85 : 139,279,519.53 = 54,517,418.28 : x
  2. Step 2: Convert to fraction form
    100,927,143.85/139,279,519.53 = 54,517,418.28/x
  3. Step 3: Cross multiply
    100,927,143.85x = 139,279,519.53 × 54,517,418.28
  4. Step 4: Simplify right side
    100,927,143.85x = 7,593,159,824,054,439
  5. Step 5: Solve for x
    x = 7,593,159,824,054,439/100,927,143.85
  6. Step 6: Final answer
    x = 75,234,070.19

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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.