Home / 144,839,029.78-199,881,649.20-78,763,392.46

Finding the Fourth Proportional to 144,839,029.78, 199,881,649.20 and 78,763,392.46

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Solution

The fourth proportional to 144,839,029.78, 199,881,649.20 and 78,763,392.46 is: 108,695,541.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,839,029.78 : 199,881,649.20 = 78,763,392.46 : x
  2. Step 2: Convert to fraction form
    144,839,029.78/199,881,649.20 = 78,763,392.46/x
  3. Step 3: Cross multiply
    144,839,029.78x = 199,881,649.20 × 78,763,392.46
  4. Step 4: Simplify right side
    144,839,029.78x = 15,743,356,781,491,642
  5. Step 5: Solve for x
    x = 15,743,356,781,491,642/144,839,029.78
  6. Step 6: Final answer
    x = 108,695,541.56

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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.