Home / 668,928,456.60-1,003,392,684.90-436,476,163.20

Finding the Fourth Proportional to 668,928,456.60, 1,003,392,684.90 and 436,476,163.20

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Solution

The fourth proportional to 668,928,456.60, 1,003,392,684.90 and 436,476,163.20 is: 654,714,244.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,928,456.60 : 1,003,392,684.90 = 436,476,163.20 : x
  2. Step 2: Convert to fraction form
    668,928,456.60/1,003,392,684.90 = 436,476,163.20/x
  3. Step 3: Cross multiply
    668,928,456.60x = 1,003,392,684.90 × 436,476,163.20
  4. Step 4: Simplify right side
    668,928,456.60x = 437,956,989,288,098,560
  5. Step 5: Solve for x
    x = 437,956,989,288,098,560/668,928,456.60
  6. Step 6: Final answer
    x = 654,714,244.80

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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.