Home / 21,249,940.20-31,821,766.20-16,998,412.20

Finding the Fourth Proportional to 21,249,940.20, 31,821,766.20 and 16,998,412.20

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Solution

The fourth proportional to 21,249,940.20, 31,821,766.20 and 16,998,412.20 is: 25,455,106.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,249,940.20 : 31,821,766.20 = 16,998,412.20 : x
  2. Step 2: Convert to fraction form
    21,249,940.20/31,821,766.20 = 16,998,412.20/x
  3. Step 3: Cross multiply
    21,249,940.20x = 31,821,766.20 × 16,998,412.20
  4. Step 4: Simplify right side
    21,249,940.20x = 540,919,498,799,627.62
  5. Step 5: Solve for x
    x = 540,919,498,799,627.62/21,249,940.20
  6. Step 6: Final answer
    x = 25,455,106.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.