Home / 21,282,778-29,370,236.92-11,624,986

Finding the Fourth Proportional to 21,282,778, 29,370,236.92 and 11,624,986

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Solution

The fourth proportional to 21,282,778, 29,370,236.92 and 11,624,986 is: 16,042,482.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282,778 : 29,370,236.92 = 11,624,986 : x
  2. Step 2: Convert to fraction form
    21,282,778/29,370,236.92 = 11,624,986/x
  3. Step 3: Cross multiply
    21,282,778x = 29,370,236.92 × 11,624,986
  4. Step 4: Simplify right side
    21,282,778x = 341,428,593,011,683.12
  5. Step 5: Solve for x
    x = 341,428,593,011,683.12/21,282,778
  6. Step 6: Final answer
    x = 16,042,482.47

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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.