Home / 315,241,591.80-472,066,125.30-206,949,905.40

Finding the Fourth Proportional to 315,241,591.80, 472,066,125.30 and 206,949,905.40

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Solution

The fourth proportional to 315,241,591.80, 472,066,125.30 and 206,949,905.40 is: 309,902,127.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,241,591.80 : 472,066,125.30 = 206,949,905.40 : x
  2. Step 2: Convert to fraction form
    315,241,591.80/472,066,125.30 = 206,949,905.40/x
  3. Step 3: Cross multiply
    315,241,591.80x = 472,066,125.30 × 206,949,905.40
  4. Step 4: Simplify right side
    315,241,591.80x = 97,694,039,973,379,552
  5. Step 5: Solve for x
    x = 97,694,039,973,379,552/315,241,591.80
  6. Step 6: Final answer
    x = 309,902,127.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.