Home / 381,115,356.98-571,700,359.97-159,563,748.86

Finding the Fourth Proportional to 381,115,356.98, 571,700,359.97 and 159,563,748.86

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Solution

The fourth proportional to 381,115,356.98, 571,700,359.97 and 159,563,748.86 is: 239,357,063.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,115,356.98 : 571,700,359.97 = 159,563,748.86 : x
  2. Step 2: Convert to fraction form
    381,115,356.98/571,700,359.97 = 159,563,748.86/x
  3. Step 3: Cross multiply
    381,115,356.98x = 571,700,359.97 × 159,563,748.86
  4. Step 4: Simplify right side
    381,115,356.98x = 91,222,652,657,768,352
  5. Step 5: Solve for x
    x = 91,222,652,657,768,352/381,115,356.98
  6. Step 6: Final answer
    x = 239,357,063.39

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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.