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Finding the Fourth Proportional to 20,403,003.53, 30,604,505.29 and 20,403,003.53

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Solution

The fourth proportional to 20,403,003.53, 30,604,505.29 and 20,403,003.53 is: 30,604,505.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,403,003.53 : 30,604,505.29 = 20,403,003.53 : x
  2. Step 2: Convert to fraction form
    20,403,003.53/30,604,505.29 = 20,403,003.53/x
  3. Step 3: Cross multiply
    20,403,003.53x = 30,604,505.29 × 20,403,003.53
  4. Step 4: Simplify right side
    20,403,003.53x = 624,423,829,261,743.62
  5. Step 5: Solve for x
    x = 624,423,829,261,743.62/20,403,003.53
  6. Step 6: Final answer
    x = 30,604,505.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.