Home / 20,564,390.76-30,662,735.01-19,999,402.53

Finding the Fourth Proportional to 20,564,390.76, 30,662,735.01 and 19,999,402.53

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Solution

The fourth proportional to 20,564,390.76, 30,662,735.01 and 19,999,402.53 is: 29,820,303.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564,390.76 : 30,662,735.01 = 19,999,402.53 : x
  2. Step 2: Convert to fraction form
    20,564,390.76/30,662,735.01 = 19,999,402.53/x
  3. Step 3: Cross multiply
    20,564,390.76x = 30,662,735.01 × 19,999,402.53
  4. Step 4: Simplify right side
    20,564,390.76x = 613,236,380,135,713.62
  5. Step 5: Solve for x
    x = 613,236,380,135,713.62/20,564,390.76
  6. Step 6: Final answer
    x = 29,820,303.81

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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.