Home / 140,631,642.15-194,053,261.86-81,095,137.20

Finding the Fourth Proportional to 140,631,642.15, 194,053,261.86 and 81,095,137.20

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Solution

The fourth proportional to 140,631,642.15, 194,053,261.86 and 81,095,137.20 is: 111,900,676.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,631,642.15 : 194,053,261.86 = 81,095,137.20 : x
  2. Step 2: Convert to fraction form
    140,631,642.15/194,053,261.86 = 81,095,137.20/x
  3. Step 3: Cross multiply
    140,631,642.15x = 194,053,261.86 × 81,095,137.20
  4. Step 4: Simplify right side
    140,631,642.15x = 15,736,775,894,644,228
  5. Step 5: Solve for x
    x = 15,736,775,894,644,228/140,631,642.15
  6. Step 6: Final answer
    x = 111,900,676.51

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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.