Home / 20,862,064.80-31,293,097.20-15,823,216.80

Finding the Fourth Proportional to 20,862,064.80, 31,293,097.20 and 15,823,216.80

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Solution

The fourth proportional to 20,862,064.80, 31,293,097.20 and 15,823,216.80 is: 23,734,825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862,064.80 : 31,293,097.20 = 15,823,216.80 : x
  2. Step 2: Convert to fraction form
    20,862,064.80/31,293,097.20 = 15,823,216.80/x
  3. Step 3: Cross multiply
    20,862,064.80x = 31,293,097.20 × 15,823,216.80
  4. Step 4: Simplify right side
    20,862,064.80x = 495,157,461,339,073
  5. Step 5: Solve for x
    x = 495,157,461,339,073/20,862,064.80
  6. Step 6: Final answer
    x = 23,734,825.20

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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.