Home / 289,418,579.28-434,171,958.84-180,155,359.44

Finding the Fourth Proportional to 289,418,579.28, 434,171,958.84 and 180,155,359.44

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Solution

The fourth proportional to 289,418,579.28, 434,171,958.84 and 180,155,359.44 is: 270,260,483.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,418,579.28 : 434,171,958.84 = 180,155,359.44 : x
  2. Step 2: Convert to fraction form
    289,418,579.28/434,171,958.84 = 180,155,359.44/x
  3. Step 3: Cross multiply
    289,418,579.28x = 434,171,958.84 × 180,155,359.44
  4. Step 4: Simplify right side
    289,418,579.28x = 78,218,405,303,589,072
  5. Step 5: Solve for x
    x = 78,218,405,303,589,072/289,418,579.28
  6. Step 6: Final answer
    x = 270,260,483.96

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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.