Home / 100,831,403.80-151,247,105.70-80,676,011.80

Finding the Fourth Proportional to 100,831,403.80, 151,247,105.70 and 80,676,011.80

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Solution

The fourth proportional to 100,831,403.80, 151,247,105.70 and 80,676,011.80 is: 121,014,017.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,831,403.80 : 151,247,105.70 = 80,676,011.80 : x
  2. Step 2: Convert to fraction form
    100,831,403.80/151,247,105.70 = 80,676,011.80/x
  3. Step 3: Cross multiply
    100,831,403.80x = 151,247,105.70 × 80,676,011.80
  4. Step 4: Simplify right side
    100,831,403.80x = 12,202,013,284,169,046
  5. Step 5: Solve for x
    x = 12,202,013,284,169,046/100,831,403.80
  6. Step 6: Final answer
    x = 121,014,017.70

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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.