Home / 100,831,409.20-151,247,113.80-80,676,017.20

Finding the Fourth Proportional to 100,831,409.20, 151,247,113.80 and 80,676,017.20

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Solution

The fourth proportional to 100,831,409.20, 151,247,113.80 and 80,676,017.20 is: 121,014,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,831,409.20 : 151,247,113.80 = 80,676,017.20 : x
  2. Step 2: Convert to fraction form
    100,831,409.20/151,247,113.80 = 80,676,017.20/x
  3. Step 3: Cross multiply
    100,831,409.20x = 151,247,113.80 × 80,676,017.20
  4. Step 4: Simplify right side
    100,831,409.20x = 12,202,014,754,379,158
  5. Step 5: Solve for x
    x = 12,202,014,754,379,158/100,831,409.20
  6. Step 6: Final answer
    x = 121,014,025.80

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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.