Home / 143,327,218.80-214,990,828.20-78,606,015.60

Finding the Fourth Proportional to 143,327,218.80, 214,990,828.20 and 78,606,015.60

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Solution

The fourth proportional to 143,327,218.80, 214,990,828.20 and 78,606,015.60 is: 117,909,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,327,218.80 : 214,990,828.20 = 78,606,015.60 : x
  2. Step 2: Convert to fraction form
    143,327,218.80/214,990,828.20 = 78,606,015.60/x
  3. Step 3: Cross multiply
    143,327,218.80x = 214,990,828.20 × 78,606,015.60
  4. Step 4: Simplify right side
    143,327,218.80x = 16,899,572,395,346,118
  5. Step 5: Solve for x
    x = 16,899,572,395,346,118/143,327,218.80
  6. Step 6: Final answer
    x = 117,909,023.40

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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.