Home / 20,585,050.88-28,388,774.40-12,850,805.12

Finding the Fourth Proportional to 20,585,050.88, 28,388,774.40 and 12,850,805.12

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Solution

The fourth proportional to 20,585,050.88, 28,388,774.40 and 12,850,805.12 is: 17,722,502.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,585,050.88 : 28,388,774.40 = 12,850,805.12 : x
  2. Step 2: Convert to fraction form
    20,585,050.88/28,388,774.40 = 12,850,805.12/x
  3. Step 3: Cross multiply
    20,585,050.88x = 28,388,774.40 × 12,850,805.12
  4. Step 4: Simplify right side
    20,585,050.88x = 364,818,607,410,044.88
  5. Step 5: Solve for x
    x = 364,818,607,410,044.88/20,585,050.88
  6. Step 6: Final answer
    x = 17,722,502.10

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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.