Home / 320,827,400.60-481,241,100.90-78,490,304.60

Finding the Fourth Proportional to 320,827,400.60, 481,241,100.90 and 78,490,304.60

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Solution

The fourth proportional to 320,827,400.60, 481,241,100.90 and 78,490,304.60 is: 117,735,456.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,827,400.60 : 481,241,100.90 = 78,490,304.60 : x
  2. Step 2: Convert to fraction form
    320,827,400.60/481,241,100.90 = 78,490,304.60/x
  3. Step 3: Cross multiply
    320,827,400.60x = 481,241,100.90 × 78,490,304.60
  4. Step 4: Simplify right side
    320,827,400.60x = 37,772,760,595,680,328
  5. Step 5: Solve for x
    x = 37,772,760,595,680,328/320,827,400.60
  6. Step 6: Final answer
    x = 117,735,456.90

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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.