Home / 278,143,994.40-417,215,991.60-175,351,495.20

Finding the Fourth Proportional to 278,143,994.40, 417,215,991.60 and 175,351,495.20

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Solution

The fourth proportional to 278,143,994.40, 417,215,991.60 and 175,351,495.20 is: 263,027,242.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,143,994.40 : 417,215,991.60 = 175,351,495.20 : x
  2. Step 2: Convert to fraction form
    278,143,994.40/417,215,991.60 = 175,351,495.20/x
  3. Step 3: Cross multiply
    278,143,994.40x = 417,215,991.60 × 175,351,495.20
  4. Step 4: Simplify right side
    278,143,994.40x = 73,159,447,948,410,640
  5. Step 5: Solve for x
    x = 73,159,447,948,410,640/278,143,994.40
  6. Step 6: Final answer
    x = 263,027,242.80

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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.