Home / 20,732,365.74-28,621,022.69-12,894,404.46

Finding the Fourth Proportional to 20,732,365.74, 28,621,022.69 and 12,894,404.46

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Solution

The fourth proportional to 20,732,365.74, 28,621,022.69 and 12,894,404.46 is: 17,800,720.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732,365.74 : 28,621,022.69 = 12,894,404.46 : x
  2. Step 2: Convert to fraction form
    20,732,365.74/28,621,022.69 = 12,894,404.46/x
  3. Step 3: Cross multiply
    20,732,365.74x = 28,621,022.69 × 12,894,404.46
  4. Step 4: Simplify right side
    20,732,365.74x = 369,051,042,623,697.25
  5. Step 5: Solve for x
    x = 369,051,042,623,697.25/20,732,365.74
  6. Step 6: Final answer
    x = 17,800,720.25

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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.