Home / 668,757,739.60-1,003,136,609.40-280,858,953.70

Finding the Fourth Proportional to 668,757,739.60, 1,003,136,609.40 and 280,858,953.70

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Solution

The fourth proportional to 668,757,739.60, 1,003,136,609.40 and 280,858,953.70 is: 421,288,430.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,757,739.60 : 1,003,136,609.40 = 280,858,953.70 : x
  2. Step 2: Convert to fraction form
    668,757,739.60/1,003,136,609.40 = 280,858,953.70/x
  3. Step 3: Cross multiply
    668,757,739.60x = 1,003,136,609.40 × 280,858,953.70
  4. Step 4: Simplify right side
    668,757,739.60x = 281,739,898,534,249,568
  5. Step 5: Solve for x
    x = 281,739,898,534,249,568/668,757,739.60
  6. Step 6: Final answer
    x = 421,288,430.55

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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.