Home / 21,859,890.39-30,169,207.35-18,182,318.67

Finding the Fourth Proportional to 21,859,890.39, 30,169,207.35 and 18,182,318.67

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Solution

The fourth proportional to 21,859,890.39, 30,169,207.35 and 18,182,318.67 is: 25,093,727.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,859,890.39 : 30,169,207.35 = 18,182,318.67 : x
  2. Step 2: Convert to fraction form
    21,859,890.39/30,169,207.35 = 18,182,318.67/x
  3. Step 3: Cross multiply
    21,859,890.39x = 30,169,207.35 × 18,182,318.67
  4. Step 4: Simplify right side
    21,859,890.39x = 548,546,142,059,006.31
  5. Step 5: Solve for x
    x = 548,546,142,059,006.31/21,859,890.39
  6. Step 6: Final answer
    x = 25,093,727.93

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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.