Home / 76,659,938.40-114,989,907.60-49,450,159.20

Finding the Fourth Proportional to 76,659,938.40, 114,989,907.60 and 49,450,159.20

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Solution

The fourth proportional to 76,659,938.40, 114,989,907.60 and 49,450,159.20 is: 74,175,238.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,659,938.40 : 114,989,907.60 = 49,450,159.20 : x
  2. Step 2: Convert to fraction form
    76,659,938.40/114,989,907.60 = 49,450,159.20/x
  3. Step 3: Cross multiply
    76,659,938.40x = 114,989,907.60 × 49,450,159.20
  4. Step 4: Simplify right side
    76,659,938.40x = 5,686,269,237,213,290
  5. Step 5: Solve for x
    x = 5,686,269,237,213,290/76,659,938.40
  6. Step 6: Final answer
    x = 74,175,238.80

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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.