Home / 311,146,382.70-429,381,126.63-171,916,152.57

Finding the Fourth Proportional to 311,146,382.70, 429,381,126.63 and 171,916,152.57

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Solution

The fourth proportional to 311,146,382.70, 429,381,126.63 and 171,916,152.57 is: 237,243,803.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,146,382.70 : 429,381,126.63 = 171,916,152.57 : x
  2. Step 2: Convert to fraction form
    311,146,382.70/429,381,126.63 = 171,916,152.57/x
  3. Step 3: Cross multiply
    311,146,382.70x = 429,381,126.63 × 171,916,152.57
  4. Step 4: Simplify right side
    311,146,382.70x = 73,817,551,276,401,568
  5. Step 5: Solve for x
    x = 73,817,551,276,401,568/311,146,382.70
  6. Step 6: Final answer
    x = 237,243,803.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.