Home / 381,581,621.10-572,372,431.65-136,215,311.40

Finding the Fourth Proportional to 381,581,621.10, 572,372,431.65 and 136,215,311.40

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Solution

The fourth proportional to 381,581,621.10, 572,372,431.65 and 136,215,311.40 is: 204,322,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,581,621.10 : 572,372,431.65 = 136,215,311.40 : x
  2. Step 2: Convert to fraction form
    381,581,621.10/572,372,431.65 = 136,215,311.40/x
  3. Step 3: Cross multiply
    381,581,621.10x = 572,372,431.65 × 136,215,311.40
  4. Step 4: Simplify right side
    381,581,621.10x = 77,965,889,013,979,968
  5. Step 5: Solve for x
    x = 77,965,889,013,979,968/381,581,621.10
  6. Step 6: Final answer
    x = 204,322,967.10

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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.