Home / 135,430,562.70-186,910,131.42-80,426,419.20

Finding the Fourth Proportional to 135,430,562.70, 186,910,131.42 and 80,426,419.20

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Solution

The fourth proportional to 135,430,562.70, 186,910,131.42 and 80,426,419.20 is: 110,997,933.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,430,562.70 : 186,910,131.42 = 80,426,419.20 : x
  2. Step 2: Convert to fraction form
    135,430,562.70/186,910,131.42 = 80,426,419.20/x
  3. Step 3: Cross multiply
    135,430,562.70x = 186,910,131.42 × 80,426,419.20
  4. Step 4: Simplify right side
    135,430,562.70x = 15,032,512,582,312,010
  5. Step 5: Solve for x
    x = 15,032,512,582,312,010/135,430,562.70
  6. Step 6: Final answer
    x = 110,997,933.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.