Home / 213,713,977.20-320,570,965.80-123,014,713.20

Finding the Fourth Proportional to 213,713,977.20, 320,570,965.80 and 123,014,713.20

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Solution

The fourth proportional to 213,713,977.20, 320,570,965.80 and 123,014,713.20 is: 184,522,069.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,713,977.20 : 320,570,965.80 = 123,014,713.20 : x
  2. Step 2: Convert to fraction form
    213,713,977.20/320,570,965.80 = 123,014,713.20/x
  3. Step 3: Cross multiply
    213,713,977.20x = 320,570,965.80 × 123,014,713.20
  4. Step 4: Simplify right side
    213,713,977.20x = 39,434,945,418,134,008
  5. Step 5: Solve for x
    x = 39,434,945,418,134,008/213,713,977.20
  6. Step 6: Final answer
    x = 184,522,069.80

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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.