Home / 20,939,513.24-31,426,066.20-10,845,021.08

Finding the Fourth Proportional to 20,939,513.24, 31,426,066.20 and 10,845,021.08

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Solution

The fourth proportional to 20,939,513.24, 31,426,066.20 and 10,845,021.08 is: 16,276,230.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,939,513.24 : 31,426,066.20 = 10,845,021.08 : x
  2. Step 2: Convert to fraction form
    20,939,513.24/31,426,066.20 = 10,845,021.08/x
  3. Step 3: Cross multiply
    20,939,513.24x = 31,426,066.20 × 10,845,021.08
  4. Step 4: Simplify right side
    20,939,513.24x = 340,816,350,400,475.50
  5. Step 5: Solve for x
    x = 340,816,350,400,475.50/20,939,513.24
  6. Step 6: Final answer
    x = 16,276,230.80

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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.