Home / 21,186,166.30-31,783,396.65-9,055,606.30

Finding the Fourth Proportional to 21,186,166.30, 31,783,396.65 and 9,055,606.30

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Solution

The fourth proportional to 21,186,166.30, 31,783,396.65 and 9,055,606.30 is: 13,585,182.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186,166.30 : 31,783,396.65 = 9,055,606.30 : x
  2. Step 2: Convert to fraction form
    21,186,166.30/31,783,396.65 = 9,055,606.30/x
  3. Step 3: Cross multiply
    21,186,166.30x = 31,783,396.65 × 9,055,606.30
  4. Step 4: Simplify right side
    21,186,166.30x = 287,817,926,939,138.88
  5. Step 5: Solve for x
    x = 287,817,926,939,138.88/21,186,166.30
  6. Step 6: Final answer
    x = 13,585,182.09

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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.