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Finding the Fourth Proportional to 939,933,581.62, 1,409,947,203.63 and 357,712,951.20

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Solution

The fourth proportional to 939,933,581.62, 1,409,947,203.63 and 357,712,951.20 is: 536,587,249.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,933,581.62 : 1,409,947,203.63 = 357,712,951.20 : x
  2. Step 2: Convert to fraction form
    939,933,581.62/1,409,947,203.63 = 357,712,951.20/x
  3. Step 3: Cross multiply
    939,933,581.62x = 1,409,947,203.63 × 357,712,951.20
  4. Step 4: Simplify right side
    939,933,581.62x = 504,356,375,244,886,080
  5. Step 5: Solve for x
    x = 504,356,375,244,886,080/939,933,581.62
  6. Step 6: Final answer
    x = 536,587,249.47

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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.