Home / 260,812,028.40-391,218,042.60-124,763,132.40

Finding the Fourth Proportional to 260,812,028.40, 391,218,042.60 and 124,763,132.40

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Solution

The fourth proportional to 260,812,028.40, 391,218,042.60 and 124,763,132.40 is: 187,144,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,812,028.40 : 391,218,042.60 = 124,763,132.40 : x
  2. Step 2: Convert to fraction form
    260,812,028.40/391,218,042.60 = 124,763,132.40/x
  3. Step 3: Cross multiply
    260,812,028.40x = 391,218,042.60 × 124,763,132.40
  4. Step 4: Simplify right side
    260,812,028.40x = 48,809,588,446,172,648
  5. Step 5: Solve for x
    x = 48,809,588,446,172,648/260,812,028.40
  6. Step 6: Final answer
    x = 187,144,698.60

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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.