Home / 21,281,996.80-31,922,995.20-8,504,473.60

Finding the Fourth Proportional to 21,281,996.80, 31,922,995.20 and 8,504,473.60

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Solution

The fourth proportional to 21,281,996.80, 31,922,995.20 and 8,504,473.60 is: 12,756,710.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,281,996.80 : 31,922,995.20 = 8,504,473.60 : x
  2. Step 2: Convert to fraction form
    21,281,996.80/31,922,995.20 = 8,504,473.60/x
  3. Step 3: Cross multiply
    21,281,996.80x = 31,922,995.20 × 8,504,473.60
  4. Step 4: Simplify right side
    21,281,996.80x = 271,488,269,911,326.69
  5. Step 5: Solve for x
    x = 271,488,269,911,326.69/21,281,996.80
  6. Step 6: Final answer
    x = 12,756,710.40

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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.