Home / 100,831,406.30-151,247,109.45-80,676,014.30

Finding the Fourth Proportional to 100,831,406.30, 151,247,109.45 and 80,676,014.30

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Solution

The fourth proportional to 100,831,406.30, 151,247,109.45 and 80,676,014.30 is: 121,014,021.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,831,406.30 : 151,247,109.45 = 80,676,014.30 : x
  2. Step 2: Convert to fraction form
    100,831,406.30/151,247,109.45 = 80,676,014.30/x
  3. Step 3: Cross multiply
    100,831,406.30x = 151,247,109.45 × 80,676,014.30
  4. Step 4: Simplify right side
    100,831,406.30x = 12,202,013,964,821,864
  5. Step 5: Solve for x
    x = 12,202,013,964,821,864/100,831,406.30
  6. Step 6: Final answer
    x = 121,014,021.45

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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.