Home / 20,564,178.41-30,662,418.43-19,999,190.20

Finding the Fourth Proportional to 20,564,178.41, 30,662,418.43 and 19,999,190.20

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Solution

The fourth proportional to 20,564,178.41, 30,662,418.43 and 19,999,190.20 is: 29,819,987.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564,178.41 : 30,662,418.43 = 19,999,190.20 : x
  2. Step 2: Convert to fraction form
    20,564,178.41/30,662,418.43 = 19,999,190.20/x
  3. Step 3: Cross multiply
    20,564,178.41x = 30,662,418.43 × 19,999,190.20
  4. Step 4: Simplify right side
    20,564,178.41x = 613,223,537,937,560.75
  5. Step 5: Solve for x
    x = 613,223,537,937,560.75/20,564,178.41
  6. Step 6: Final answer
    x = 29,819,987.25

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1.5x scale

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.