Home / 78,482,021.37-117,643,894.65-49,356,674.79

Finding the Fourth Proportional to 78,482,021.37, 117,643,894.65 and 49,356,674.79

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Solution

The fourth proportional to 78,482,021.37, 117,643,894.65 and 49,356,674.79 is: 73,985,243.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,482,021.37 : 117,643,894.65 = 49,356,674.79 : x
  2. Step 2: Convert to fraction form
    78,482,021.37/117,643,894.65 = 49,356,674.79/x
  3. Step 3: Cross multiply
    78,482,021.37x = 117,643,894.65 × 49,356,674.79
  4. Step 4: Simplify right side
    78,482,021.37x = 5,806,511,449,269,071
  5. Step 5: Solve for x
    x = 5,806,511,449,269,071/78,482,021.37
  6. Step 6: Final answer
    x = 73,985,243.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.