Home / 20,307,784.05-28,024,578.66-11,015,331.03

Finding the Fourth Proportional to 20,307,784.05, 28,024,578.66 and 11,015,331.03

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Solution

The fourth proportional to 20,307,784.05, 28,024,578.66 and 11,015,331.03 is: 15,201,068.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,307,784.05 : 28,024,578.66 = 11,015,331.03 : x
  2. Step 2: Convert to fraction form
    20,307,784.05/28,024,578.66 = 11,015,331.03/x
  3. Step 3: Cross multiply
    20,307,784.05x = 28,024,578.66 × 11,015,331.03
  4. Step 4: Simplify right side
    20,307,784.05x = 308,700,010,916,173.81
  5. Step 5: Solve for x
    x = 308,700,010,916,173.81/20,307,784.05
  6. Step 6: Final answer
    x = 15,201,068.23

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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.