Home / 320,827,218.60-481,240,827.90-78,490,122.60

Finding the Fourth Proportional to 320,827,218.60, 481,240,827.90 and 78,490,122.60

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Solution

The fourth proportional to 320,827,218.60, 481,240,827.90 and 78,490,122.60 is: 117,735,183.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,827,218.60 : 481,240,827.90 = 78,490,122.60 : x
  2. Step 2: Convert to fraction form
    320,827,218.60/481,240,827.90 = 78,490,122.60/x
  3. Step 3: Cross multiply
    320,827,218.60x = 481,240,827.90 × 78,490,122.60
  4. Step 4: Simplify right side
    320,827,218.60x = 37,772,651,581,996,496
  5. Step 5: Solve for x
    x = 37,772,651,581,996,496/320,827,218.60
  6. Step 6: Final answer
    x = 117,735,183.90

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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.