Home / 220,474,988.70-304,253,069.90-121,353,616.86

Finding the Fourth Proportional to 220,474,988.70, 304,253,069.90 and 121,353,616.86

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Solution

The fourth proportional to 220,474,988.70, 304,253,069.90 and 121,353,616.86 is: 167,466,662.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,474,988.70 : 304,253,069.90 = 121,353,616.86 : x
  2. Step 2: Convert to fraction form
    220,474,988.70/304,253,069.90 = 121,353,616.86/x
  3. Step 3: Cross multiply
    220,474,988.70x = 304,253,069.90 × 121,353,616.86
  4. Step 4: Simplify right side
    220,474,988.70x = 36,922,210,471,602,128
  5. Step 5: Solve for x
    x = 36,922,210,471,602,128/220,474,988.70
  6. Step 6: Final answer
    x = 167,466,662.27

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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.