Home / 285,081,829.72-393,412,925.82-154,701,637.72

Finding the Fourth Proportional to 285,081,829.72, 393,412,925.82 and 154,701,637.72

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Solution

The fourth proportional to 285,081,829.72, 393,412,925.82 and 154,701,637.72 is: 213,488,260.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,081,829.72 : 393,412,925.82 = 154,701,637.72 : x
  2. Step 2: Convert to fraction form
    285,081,829.72/393,412,925.82 = 154,701,637.72/x
  3. Step 3: Cross multiply
    285,081,829.72x = 393,412,925.82 × 154,701,637.72
  4. Step 4: Simplify right side
    285,081,829.72x = 60,861,623,924,570,872
  5. Step 5: Solve for x
    x = 60,861,623,924,570,872/285,081,829.72
  6. Step 6: Final answer
    x = 213,488,260.49

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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.