Home / 508,374,930.28-701,501,265.30-285,305,449

Finding the Fourth Proportional to 508,374,930.28, 701,501,265.30 and 285,305,449

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Solution

The fourth proportional to 508,374,930.28, 701,501,265.30 and 285,305,449 is: 393,690,014.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,374,930.28 : 701,501,265.30 = 285,305,449 : x
  2. Step 2: Convert to fraction form
    508,374,930.28/701,501,265.30 = 285,305,449/x
  3. Step 3: Cross multiply
    508,374,930.28x = 701,501,265.30 × 285,305,449
  4. Step 4: Simplify right side
    508,374,930.28x = 200,142,133,470,484,608
  5. Step 5: Solve for x
    x = 200,142,133,470,484,608/508,374,930.28
  6. Step 6: Final answer
    x = 393,690,014.10

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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.