Home / 20,700,224.90-28,566,422.66-11,878,973.68

Finding the Fourth Proportional to 20,700,224.90, 28,566,422.66 and 11,878,973.68

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Solution

The fourth proportional to 20,700,224.90, 28,566,422.66 and 11,878,973.68 is: 16,393,048.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,700,224.90 : 28,566,422.66 = 11,878,973.68 : x
  2. Step 2: Convert to fraction form
    20,700,224.90/28,566,422.66 = 11,878,973.68/x
  3. Step 3: Cross multiply
    20,700,224.90x = 28,566,422.66 × 11,878,973.68
  4. Step 4: Simplify right side
    20,700,224.90x = 339,339,782,850,500.75
  5. Step 5: Solve for x
    x = 339,339,782,850,500.75/20,700,224.90
  6. Step 6: Final answer
    x = 16,393,048.12

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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.