Home / 20,915,850.59-28,864,574.75-11,623,812.29

Finding the Fourth Proportional to 20,915,850.59, 28,864,574.75 and 11,623,812.29

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Solution

The fourth proportional to 20,915,850.59, 28,864,574.75 and 11,623,812.29 is: 16,041,250.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,850.59 : 28,864,574.75 = 11,623,812.29 : x
  2. Step 2: Convert to fraction form
    20,915,850.59/28,864,574.75 = 11,623,812.29/x
  3. Step 3: Cross multiply
    20,915,850.59x = 28,864,574.75 × 11,623,812.29
  4. Step 4: Simplify right side
    20,915,850.59x = 335,516,398,522,231.75
  5. Step 5: Solve for x
    x = 335,516,398,522,231.75/20,915,850.59
  6. Step 6: Final answer
    x = 16,041,250.49

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1.5x scale

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.