Home / 220,474,983.90-304,253,063.31-121,353,612.06

Finding the Fourth Proportional to 220,474,983.90, 304,253,063.31 and 121,353,612.06

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Solution

The fourth proportional to 220,474,983.90, 304,253,063.31 and 121,353,612.06 is: 167,466,655.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,474,983.90 : 304,253,063.31 = 121,353,612.06 : x
  2. Step 2: Convert to fraction form
    220,474,983.90/304,253,063.31 = 121,353,612.06/x
  3. Step 3: Cross multiply
    220,474,983.90x = 304,253,063.31 × 121,353,612.06
  4. Step 4: Simplify right side
    220,474,983.90x = 36,922,208,212,988,360
  5. Step 5: Solve for x
    x = 36,922,208,212,988,360/220,474,983.90
  6. Step 6: Final answer
    x = 167,466,655.67

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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.