Home / 20,915,844.79-28,864,566.77-11,623,806.51

Finding the Fourth Proportional to 20,915,844.79, 28,864,566.77 and 11,623,806.51

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Solution

The fourth proportional to 20,915,844.79, 28,864,566.77 and 11,623,806.51 is: 16,041,242.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,844.79 : 28,864,566.77 = 11,623,806.51 : x
  2. Step 2: Convert to fraction form
    20,915,844.79/28,864,566.77 = 11,623,806.51/x
  3. Step 3: Cross multiply
    20,915,844.79x = 28,864,566.77 × 11,623,806.51
  4. Step 4: Simplify right side
    20,915,844.79x = 335,516,139,129,455.69
  5. Step 5: Solve for x
    x = 335,516,139,129,455.69/20,915,844.79
  6. Step 6: Final answer
    x = 16,041,242.54

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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.