Home / 21,080,001.40-31,631,811.90-8,947,400.20

Finding the Fourth Proportional to 21,080,001.40, 31,631,811.90 and 8,947,400.20

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Solution

The fourth proportional to 21,080,001.40, 31,631,811.90 and 8,947,400.20 is: 13,426,112.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,080,001.40 : 31,631,811.90 = 8,947,400.20 : x
  2. Step 2: Convert to fraction form
    21,080,001.40/31,631,811.90 = 8,947,400.20/x
  3. Step 3: Cross multiply
    21,080,001.40x = 31,631,811.90 × 8,947,400.20
  4. Step 4: Simplify right side
    21,080,001.40x = 283,022,480,120,422.31
  5. Step 5: Solve for x
    x = 283,022,480,120,422.31/21,080,001.40
  6. Step 6: Final answer
    x = 13,426,112.97

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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.