Home / 109,220,919.90-163,831,379.85-99,867,558.30

Finding the Fourth Proportional to 109,220,919.90, 163,831,379.85 and 99,867,558.30

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Solution

The fourth proportional to 109,220,919.90, 163,831,379.85 and 99,867,558.30 is: 149,801,337.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,220,919.90 : 163,831,379.85 = 99,867,558.30 : x
  2. Step 2: Convert to fraction form
    109,220,919.90/163,831,379.85 = 99,867,558.30/x
  3. Step 3: Cross multiply
    109,220,919.90x = 163,831,379.85 × 99,867,558.30
  4. Step 4: Simplify right side
    109,220,919.90x = 16,361,439,878,539,320
  5. Step 5: Solve for x
    x = 16,361,439,878,539,320/109,220,919.90
  6. Step 6: Final answer
    x = 149,801,337.45

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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.