Home / 21,115,364.48-31,661,500.41-16,766,439.93

Finding the Fourth Proportional to 21,115,364.48, 31,661,500.41 and 16,766,439.93

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Solution

The fourth proportional to 21,115,364.48, 31,661,500.41 and 16,766,439.93 is: 25,140,491.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,115,364.48 : 31,661,500.41 = 16,766,439.93 : x
  2. Step 2: Convert to fraction form
    21,115,364.48/31,661,500.41 = 16,766,439.93/x
  3. Step 3: Cross multiply
    21,115,364.48x = 31,661,500.41 × 16,766,439.93
  4. Step 4: Simplify right side
    21,115,364.48x = 530,850,644,717,935.38
  5. Step 5: Solve for x
    x = 530,850,644,717,935.38/21,115,364.48
  6. Step 6: Final answer
    x = 25,140,491.67

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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.