Home / 126,138,966.21-174,045,775.01-72,483,260.82

Finding the Fourth Proportional to 126,138,966.21, 174,045,775.01 and 72,483,260.82

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Solution

The fourth proportional to 126,138,966.21, 174,045,775.01 and 72,483,260.82 is: 100,011,960.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,138,966.21 : 174,045,775.01 = 72,483,260.82 : x
  2. Step 2: Convert to fraction form
    126,138,966.21/174,045,775.01 = 72,483,260.82/x
  3. Step 3: Cross multiply
    126,138,966.21x = 174,045,775.01 × 72,483,260.82
  4. Step 4: Simplify right side
    126,138,966.21x = 12,615,405,304,306,450
  5. Step 5: Solve for x
    x = 12,615,405,304,306,450/126,138,966.21
  6. Step 6: Final answer
    x = 100,011,960.49

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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.