Home / 279,921,107.04-419,833,813.92-75,401,352.72

Finding the Fourth Proportional to 279,921,107.04, 419,833,813.92 and 75,401,352.72

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Solution

The fourth proportional to 279,921,107.04, 419,833,813.92 and 75,401,352.72 is: 113,089,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,921,107.04 : 419,833,813.92 = 75,401,352.72 : x
  2. Step 2: Convert to fraction form
    279,921,107.04/419,833,813.92 = 75,401,352.72/x
  3. Step 3: Cross multiply
    279,921,107.04x = 419,833,813.92 × 75,401,352.72
  4. Step 4: Simplify right side
    279,921,107.04x = 31,656,037,487,164,768
  5. Step 5: Solve for x
    x = 31,656,037,487,164,768/279,921,107.04
  6. Step 6: Final answer
    x = 113,089,140.80

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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.