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Finding the Fourth Proportional to 323,528,783.60, 485,293,175.40 and 179,921,615.60

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Solution

The fourth proportional to 323,528,783.60, 485,293,175.40 and 179,921,615.60 is: 269,882,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,528,783.60 : 485,293,175.40 = 179,921,615.60 : x
  2. Step 2: Convert to fraction form
    323,528,783.60/485,293,175.40 = 179,921,615.60/x
  3. Step 3: Cross multiply
    323,528,783.60x = 485,293,175.40 × 179,921,615.60
  4. Step 4: Simplify right side
    323,528,783.60x = 87,314,732,157,622,176
  5. Step 5: Solve for x
    x = 87,314,732,157,622,176/323,528,783.60
  6. Step 6: Final answer
    x = 269,882,423.40

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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.