Home / 20,564,313.32-30,662,619.74-19,999,325.11

Finding the Fourth Proportional to 20,564,313.32, 30,662,619.74 and 19,999,325.11

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Solution

The fourth proportional to 20,564,313.32, 30,662,619.74 and 19,999,325.11 is: 29,820,188.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564,313.32 : 30,662,619.74 = 19,999,325.11 : x
  2. Step 2: Convert to fraction form
    20,564,313.32/30,662,619.74 = 19,999,325.11/x
  3. Step 3: Cross multiply
    20,564,313.32x = 30,662,619.74 × 19,999,325.11
  4. Step 4: Simplify right side
    20,564,313.32x = 613,231,700,904,563.62
  5. Step 5: Solve for x
    x = 613,231,700,904,563.62/20,564,313.32
  6. Step 6: Final answer
    x = 29,820,188.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.