Home / 20,954,646.11-31,431,977.90-9,426,648.28

Finding the Fourth Proportional to 20,954,646.11, 31,431,977.90 and 9,426,648.28

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Solution

The fourth proportional to 20,954,646.11, 31,431,977.90 and 9,426,648.28 is: 14,139,976.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954,646.11 : 31,431,977.90 = 9,426,648.28 : x
  2. Step 2: Convert to fraction form
    20,954,646.11/31,431,977.90 = 9,426,648.28/x
  3. Step 3: Cross multiply
    20,954,646.11x = 31,431,977.90 × 9,426,648.28
  4. Step 4: Simplify right side
    20,954,646.11x = 296,298,200,408,033
  5. Step 5: Solve for x
    x = 296,298,200,408,033/20,954,646.11
  6. Step 6: Final answer
    x = 14,139,976.35

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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.