Home / 21,341,879.70-31,970,829.15-12,796,833.30

Finding the Fourth Proportional to 21,341,879.70, 31,970,829.15 and 12,796,833.30

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Solution

The fourth proportional to 21,341,879.70, 31,970,829.15 and 12,796,833.30 is: 19,170,072.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,341,879.70 : 31,970,829.15 = 12,796,833.30 : x
  2. Step 2: Convert to fraction form
    21,341,879.70/31,970,829.15 = 12,796,833.30/x
  3. Step 3: Cross multiply
    21,341,879.70x = 31,970,829.15 × 12,796,833.30
  4. Step 4: Simplify right side
    21,341,879.70x = 409,125,371,095,330.69
  5. Step 5: Solve for x
    x = 409,125,371,095,330.69/21,341,879.70
  6. Step 6: Final answer
    x = 19,170,072.03

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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.