Home / 21,295,876.80-31,943,815.20-9,958,468.80

Finding the Fourth Proportional to 21,295,876.80, 31,943,815.20 and 9,958,468.80

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Solution

The fourth proportional to 21,295,876.80, 31,943,815.20 and 9,958,468.80 is: 14,937,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295,876.80 : 31,943,815.20 = 9,958,468.80 : x
  2. Step 2: Convert to fraction form
    21,295,876.80/31,943,815.20 = 9,958,468.80/x
  3. Step 3: Cross multiply
    21,295,876.80x = 31,943,815.20 × 9,958,468.80
  4. Step 4: Simplify right side
    21,295,876.80x = 318,111,487,022,165.75
  5. Step 5: Solve for x
    x = 318,111,487,022,165.75/21,295,876.80
  6. Step 6: Final answer
    x = 14,937,703.20

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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.