Home / 220,277,787.12-303,983,951.76-121,168,688.04

Finding the Fourth Proportional to 220,277,787.12, 303,983,951.76 and 121,168,688.04

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Solution

The fourth proportional to 220,277,787.12, 303,983,951.76 and 121,168,688.04 is: 167,213,122.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,277,787.12 : 303,983,951.76 = 121,168,688.04 : x
  2. Step 2: Convert to fraction form
    220,277,787.12/303,983,951.76 = 121,168,688.04/x
  3. Step 3: Cross multiply
    220,277,787.12x = 303,983,951.76 × 121,168,688.04
  4. Step 4: Simplify right side
    220,277,787.12x = 36,833,336,619,973,848
  5. Step 5: Solve for x
    x = 36,833,336,619,973,848/220,277,787.12
  6. Step 6: Final answer
    x = 167,213,122.58

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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.