Home / 449,550,643.40-674,325,965.10-126,434,515.40

Finding the Fourth Proportional to 449,550,643.40, 674,325,965.10 and 126,434,515.40

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Solution

The fourth proportional to 449,550,643.40, 674,325,965.10 and 126,434,515.40 is: 189,651,773.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,550,643.40 : 674,325,965.10 = 126,434,515.40 : x
  2. Step 2: Convert to fraction form
    449,550,643.40/674,325,965.10 = 126,434,515.40/x
  3. Step 3: Cross multiply
    449,550,643.40x = 674,325,965.10 × 126,434,515.40
  4. Step 4: Simplify right side
    449,550,643.40x = 85,258,076,619,055,824
  5. Step 5: Solve for x
    x = 85,258,076,619,055,824/449,550,643.40
  6. Step 6: Final answer
    x = 189,651,773.10

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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.