Home / 143,015,477.88-214,468,765.38-84,739,600.74

Finding the Fourth Proportional to 143,015,477.88, 214,468,765.38 and 84,739,600.74

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Solution

The fourth proportional to 143,015,477.88, 214,468,765.38 and 84,739,600.74 is: 127,077,137.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,015,477.88 : 214,468,765.38 = 84,739,600.74 : x
  2. Step 2: Convert to fraction form
    143,015,477.88/214,468,765.38 = 84,739,600.74/x
  3. Step 3: Cross multiply
    143,015,477.88x = 214,468,765.38 × 84,739,600.74
  4. Step 4: Simplify right side
    143,015,477.88x = 18,173,997,549,501,932
  5. Step 5: Solve for x
    x = 18,173,997,549,501,932/143,015,477.88
  6. Step 6: Final answer
    x = 127,077,137.52

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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.