Home / 20,036,821.03-27,650,866.25-10,869,463.78

Finding the Fourth Proportional to 20,036,821.03, 27,650,866.25 and 10,869,463.78

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Solution

The fourth proportional to 20,036,821.03, 27,650,866.25 and 10,869,463.78 is: 14,999,888.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,036,821.03 : 27,650,866.25 = 10,869,463.78 : x
  2. Step 2: Convert to fraction form
    20,036,821.03/27,650,866.25 = 10,869,463.78/x
  3. Step 3: Cross multiply
    20,036,821.03x = 27,650,866.25 × 10,869,463.78
  4. Step 4: Simplify right side
    20,036,821.03x = 300,550,089,148,045.94
  5. Step 5: Solve for x
    x = 300,550,089,148,045.94/20,036,821.03
  6. Step 6: Final answer
    x = 14,999,888.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.