Home / 72,245,850.12-99,699,334.20-39,206,097.36

Finding the Fourth Proportional to 72,245,850.12, 99,699,334.20 and 39,206,097.36

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Solution

The fourth proportional to 72,245,850.12, 99,699,334.20 and 39,206,097.36 is: 54,104,447.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,245,850.12 : 99,699,334.20 = 39,206,097.36 : x
  2. Step 2: Convert to fraction form
    72,245,850.12/99,699,334.20 = 39,206,097.36/x
  3. Step 3: Cross multiply
    72,245,850.12x = 99,699,334.20 × 39,206,097.36
  4. Step 4: Simplify right side
    72,245,850.12x = 3,908,821,803,372,378
  5. Step 5: Solve for x
    x = 3,908,821,803,372,378/72,245,850.12
  6. Step 6: Final answer
    x = 54,104,447.48

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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.