Home / 21,102,404.72-31,637,071.02-8,332,467.92

Finding the Fourth Proportional to 21,102,404.72, 31,637,071.02 and 8,332,467.92

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Solution

The fourth proportional to 21,102,404.72, 31,637,071.02 and 8,332,467.92 is: 12,492,172.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,102,404.72 : 31,637,071.02 = 8,332,467.92 : x
  2. Step 2: Convert to fraction form
    21,102,404.72/31,637,071.02 = 8,332,467.92/x
  3. Step 3: Cross multiply
    21,102,404.72x = 31,637,071.02 × 8,332,467.92
  4. Step 4: Simplify right side
    21,102,404.72x = 263,614,879,356,911.69
  5. Step 5: Solve for x
    x = 263,614,879,356,911.69/21,102,404.72
  6. Step 6: Final answer
    x = 12,492,172.47

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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.