Home / 217,680,925.60-300,388,337.04-135,172,940.32

Finding the Fourth Proportional to 217,680,925.60, 300,388,337.04 and 135,172,940.32

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Solution

The fourth proportional to 217,680,925.60, 300,388,337.04 and 135,172,940.32 is: 186,531,615.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,680,925.60 : 300,388,337.04 = 135,172,940.32 : x
  2. Step 2: Convert to fraction form
    217,680,925.60/300,388,337.04 = 135,172,940.32/x
  3. Step 3: Cross multiply
    217,680,925.60x = 300,388,337.04 × 135,172,940.32
  4. Step 4: Simplify right side
    217,680,925.60x = 40,604,374,755,531,968
  5. Step 5: Solve for x
    x = 40,604,374,755,531,968/217,680,925.60
  6. Step 6: Final answer
    x = 186,531,615.68

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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.