Home / 11,821,353.86-17,732,030.80-9,129,605.20

Finding the Fourth Proportional to 11,821,353.86, 17,732,030.80 and 9,129,605.20

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Solution

The fourth proportional to 11,821,353.86, 17,732,030.80 and 9,129,605.20 is: 13,694,407.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821,353.86 : 17,732,030.80 = 9,129,605.20 : x
  2. Step 2: Convert to fraction form
    11,821,353.86/17,732,030.80 = 9,129,605.20/x
  3. Step 3: Cross multiply
    11,821,353.86x = 17,732,030.80 × 9,129,605.20
  4. Step 4: Simplify right side
    11,821,353.86x = 161,886,440,598,240.16
  5. Step 5: Solve for x
    x = 161,886,440,598,240.16/11,821,353.86
  6. Step 6: Final answer
    x = 13,694,407.81

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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.