Home / 420,276,282.20-628,713,812.10-369,257,946.20

Finding the Fourth Proportional to 420,276,282.20, 628,713,812.10 and 369,257,946.20

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Solution

The fourth proportional to 420,276,282.20, 628,713,812.10 and 369,257,946.20 is: 552,392,749.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,276,282.20 : 628,713,812.10 = 369,257,946.20 : x
  2. Step 2: Convert to fraction form
    420,276,282.20/628,713,812.10 = 369,257,946.20/x
  3. Step 3: Cross multiply
    420,276,282.20x = 628,713,812.10 × 369,257,946.20
  4. Step 4: Simplify right side
    420,276,282.20x = 232,157,571,003,618,720
  5. Step 5: Solve for x
    x = 232,157,571,003,618,720/420,276,282.20
  6. Step 6: Final answer
    x = 552,392,749.33

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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.