Home / 20,928,486.42-28,883,703.06-11,636,982.90

Finding the Fourth Proportional to 20,928,486.42, 28,883,703.06 and 11,636,982.90

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Solution

The fourth proportional to 20,928,486.42, 28,883,703.06 and 11,636,982.90 is: 16,060,366.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,928,486.42 : 28,883,703.06 = 11,636,982.90 : x
  2. Step 2: Convert to fraction form
    20,928,486.42/28,883,703.06 = 11,636,982.90/x
  3. Step 3: Cross multiply
    20,928,486.42x = 28,883,703.06 × 11,636,982.90
  4. Step 4: Simplify right side
    20,928,486.42x = 336,119,158,597,897.69
  5. Step 5: Solve for x
    x = 336,119,158,597,897.69/20,928,486.42
  6. Step 6: Final answer
    x = 16,060,366.33

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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.