Home / 20,676,866.93-31,021,943.40-13,861,136.10

Finding the Fourth Proportional to 20,676,866.93, 31,021,943.40 and 13,861,136.10

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Solution

The fourth proportional to 20,676,866.93, 31,021,943.40 and 13,861,136.10 is: 20,796,157.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676,866.93 : 31,021,943.40 = 13,861,136.10 : x
  2. Step 2: Convert to fraction form
    20,676,866.93/31,021,943.40 = 13,861,136.10/x
  3. Step 3: Cross multiply
    20,676,866.93x = 31,021,943.40 × 13,861,136.10
  4. Step 4: Simplify right side
    20,676,866.93x = 429,999,379,553,896.69
  5. Step 5: Solve for x
    x = 429,999,379,553,896.69/20,676,866.93
  6. Step 6: Final answer
    x = 20,796,157.42

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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.