Home / 208,718,312.20-313,115,956.17-68,666,650.96

Finding the Fourth Proportional to 208,718,312.20, 313,115,956.17 and 68,666,650.96

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Solution

The fourth proportional to 208,718,312.20, 313,115,956.17 and 68,666,650.96 is: 103,012,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,718,312.20 : 313,115,956.17 = 68,666,650.96 : x
  2. Step 2: Convert to fraction form
    208,718,312.20/313,115,956.17 = 68,666,650.96/x
  3. Step 3: Cross multiply
    208,718,312.20x = 313,115,956.17 × 68,666,650.96
  4. Step 4: Simplify right side
    208,718,312.20x = 21,500,624,072,332,048
  5. Step 5: Solve for x
    x = 21,500,624,072,332,048/208,718,312.20
  6. Step 6: Final answer
    x = 103,012,638.64

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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.