Home / 21,080,000.40-31,631,810.40-8,947,399.20

Finding the Fourth Proportional to 21,080,000.40, 31,631,810.40 and 8,947,399.20

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Solution

The fourth proportional to 21,080,000.40, 31,631,810.40 and 8,947,399.20 is: 13,426,111.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,080,000.40 : 31,631,810.40 = 8,947,399.20 : x
  2. Step 2: Convert to fraction form
    21,080,000.40/31,631,810.40 = 8,947,399.20/x
  3. Step 3: Cross multiply
    21,080,000.40x = 31,631,810.40 × 8,947,399.20
  4. Step 4: Simplify right side
    21,080,000.40x = 283,022,435,067,511.62
  5. Step 5: Solve for x
    x = 283,022,435,067,511.62/21,080,000.40
  6. Step 6: Final answer
    x = 13,426,111.47

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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.