Home / 257,430,665.40-386,145,998.10-236,267,503.80

Finding the Fourth Proportional to 257,430,665.40, 386,145,998.10 and 236,267,503.80

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Solution

The fourth proportional to 257,430,665.40, 386,145,998.10 and 236,267,503.80 is: 354,401,255.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,430,665.40 : 386,145,998.10 = 236,267,503.80 : x
  2. Step 2: Convert to fraction form
    257,430,665.40/386,145,998.10 = 236,267,503.80/x
  3. Step 3: Cross multiply
    257,430,665.40x = 386,145,998.10 × 236,267,503.80
  4. Step 4: Simplify right side
    257,430,665.40x = 91,233,751,073,446,560
  5. Step 5: Solve for x
    x = 91,233,751,073,446,560/257,430,665.40
  6. Step 6: Final answer
    x = 354,401,255.70

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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.