Home / 490,942,389.72-677,514,861.36-267,938,374.62

Finding the Fourth Proportional to 490,942,389.72, 677,514,861.36 and 267,938,374.62

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Solution

The fourth proportional to 490,942,389.72, 677,514,861.36 and 267,938,374.62 is: 369,762,796.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,942,389.72 : 677,514,861.36 = 267,938,374.62 : x
  2. Step 2: Convert to fraction form
    490,942,389.72/677,514,861.36 = 267,938,374.62/x
  3. Step 3: Cross multiply
    490,942,389.72x = 677,514,861.36 × 267,938,374.62
  4. Step 4: Simplify right side
    490,942,389.72x = 181,532,230,733,693,056
  5. Step 5: Solve for x
    x = 181,532,230,733,693,056/490,942,389.72
  6. Step 6: Final answer
    x = 369,762,796.07

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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.