Home / 239,289,714.88-330,220,040.16-129,281,515.36

Finding the Fourth Proportional to 239,289,714.88, 330,220,040.16 and 129,281,515.36

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Solution

The fourth proportional to 239,289,714.88, 330,220,040.16 and 129,281,515.36 is: 178,408,617.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,289,714.88 : 330,220,040.16 = 129,281,515.36 : x
  2. Step 2: Convert to fraction form
    239,289,714.88/330,220,040.16 = 129,281,515.36/x
  3. Step 3: Cross multiply
    239,289,714.88x = 330,220,040.16 × 129,281,515.36
  4. Step 4: Simplify right side
    239,289,714.88x = 42,691,347,194,124,864
  5. Step 5: Solve for x
    x = 42,691,347,194,124,864/239,289,714.88
  6. Step 6: Final answer
    x = 178,408,617.42

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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.