Home / 780,109,361.40-1,076,550,658.98-427,677,785.10

Finding the Fourth Proportional to 780,109,361.40, 1,076,550,658.98 and 427,677,785.10

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Solution

The fourth proportional to 780,109,361.40, 1,076,550,658.98 and 427,677,785.10 is: 590,195,201.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,109,361.40 : 1,076,550,658.98 = 427,677,785.10 : x
  2. Step 2: Convert to fraction form
    780,109,361.40/1,076,550,658.98 = 427,677,785.10/x
  3. Step 3: Cross multiply
    780,109,361.40x = 1,076,550,658.98 × 427,677,785.10
  4. Step 4: Simplify right side
    780,109,361.40x = 460,416,801,380,511,872
  5. Step 5: Solve for x
    x = 460,416,801,380,511,872/780,109,361.40
  6. Step 6: Final answer
    x = 590,195,201.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.