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Finding the Fourth Proportional to 299,700,395.60, 449,550,593.40 and 84,289,643.60

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Solution

The fourth proportional to 299,700,395.60, 449,550,593.40 and 84,289,643.60 is: 126,434,465.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,700,395.60 : 449,550,593.40 = 84,289,643.60 : x
  2. Step 2: Convert to fraction form
    299,700,395.60/449,550,593.40 = 84,289,643.60/x
  3. Step 3: Cross multiply
    299,700,395.60x = 449,550,593.40 × 84,289,643.60
  4. Step 4: Simplify right side
    299,700,395.60x = 37,892,459,297,854,504
  5. Step 5: Solve for x
    x = 37,892,459,297,854,504/299,700,395.60
  6. Step 6: Final answer
    x = 126,434,465.40

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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.