Home / 311,861,889.43-468,252,690.53-173,956,935.74

Finding the Fourth Proportional to 311,861,889.43, 468,252,690.53 and 173,956,935.74

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Solution

The fourth proportional to 311,861,889.43, 468,252,690.53 and 173,956,935.74 is: 261,191,912.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,861,889.43 : 468,252,690.53 = 173,956,935.74 : x
  2. Step 2: Convert to fraction form
    311,861,889.43/468,252,690.53 = 173,956,935.74/x
  3. Step 3: Cross multiply
    311,861,889.43x = 468,252,690.53 × 173,956,935.74
  4. Step 4: Simplify right side
    311,861,889.43x = 81,455,803,194,702,960
  5. Step 5: Solve for x
    x = 81,455,803,194,702,960/311,861,889.43
  6. Step 6: Final answer
    x = 261,191,912.05

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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.