Home / 109,220,720.40-163,831,080.60-100,906,621.20

Finding the Fourth Proportional to 109,220,720.40, 163,831,080.60 and 100,906,621.20

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Solution

The fourth proportional to 109,220,720.40, 163,831,080.60 and 100,906,621.20 is: 151,359,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,220,720.40 : 163,831,080.60 = 100,906,621.20 : x
  2. Step 2: Convert to fraction form
    109,220,720.40/163,831,080.60 = 100,906,621.20/x
  3. Step 3: Cross multiply
    109,220,720.40x = 163,831,080.60 × 100,906,621.20
  4. Step 4: Simplify right side
    109,220,720.40x = 16,531,640,790,890,868
  5. Step 5: Solve for x
    x = 16,531,640,790,890,868/109,220,720.40
  6. Step 6: Final answer
    x = 151,359,931.80

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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.