Home / 20,307,727.79-28,024,501.10-11,015,274.75

Finding the Fourth Proportional to 20,307,727.79, 28,024,501.10 and 11,015,274.75

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Solution

The fourth proportional to 20,307,727.79, 28,024,501.10 and 11,015,274.75 is: 15,200,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,307,727.79 : 28,024,501.10 = 11,015,274.75 : x
  2. Step 2: Convert to fraction form
    20,307,727.79/28,024,501.10 = 11,015,274.75/x
  3. Step 3: Cross multiply
    20,307,727.79x = 28,024,501.10 × 11,015,274.75
  4. Step 4: Simplify right side
    20,307,727.79x = 308,697,579,188,008.94
  5. Step 5: Solve for x
    x = 308,697,579,188,008.94/20,307,727.79
  6. Step 6: Final answer
    x = 15,200,990.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.