Home / 9,666,802.11-13,375,315.60-8,428,991.79

Finding the Fourth Proportional to 9,666,802.11, 13,375,315.60 and 8,428,991.79

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Solution

The fourth proportional to 9,666,802.11, 13,375,315.60 and 8,428,991.79 is: 11,662,639.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,666,802.11 : 13,375,315.60 = 8,428,991.79 : x
  2. Step 2: Convert to fraction form
    9,666,802.11/13,375,315.60 = 8,428,991.79/x
  3. Step 3: Cross multiply
    9,666,802.11x = 13,375,315.60 × 8,428,991.79
  4. Step 4: Simplify right side
    9,666,802.11x = 112,740,425,344,702.73
  5. Step 5: Solve for x
    x = 112,740,425,344,702.73/9,666,802.11
  6. Step 6: Final answer
    x = 11,662,639.21

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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.