Home / 21,102,399.72-31,637,063.52-8,332,462.92

Finding the Fourth Proportional to 21,102,399.72, 31,637,063.52 and 8,332,462.92

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Solution

The fourth proportional to 21,102,399.72, 31,637,063.52 and 8,332,462.92 is: 12,492,164.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,102,399.72 : 31,637,063.52 = 8,332,462.92 : x
  2. Step 2: Convert to fraction form
    21,102,399.72/31,637,063.52 = 8,332,462.92/x
  3. Step 3: Cross multiply
    21,102,399.72x = 31,637,063.52 × 8,332,462.92
  4. Step 4: Simplify right side
    21,102,399.72x = 263,614,658,678,084.69
  5. Step 5: Solve for x
    x = 263,614,658,678,084.69/21,102,399.72
  6. Step 6: Final answer
    x = 12,492,164.98

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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.