Home / 699,193,816.80-1,048,790,725.20-440,700,914.40

Finding the Fourth Proportional to 699,193,816.80, 1,048,790,725.20 and 440,700,914.40

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Solution

The fourth proportional to 699,193,816.80, 1,048,790,725.20 and 440,700,914.40 is: 661,051,371.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,193,816.80 : 1,048,790,725.20 = 440,700,914.40 : x
  2. Step 2: Convert to fraction form
    699,193,816.80/1,048,790,725.20 = 440,700,914.40/x
  3. Step 3: Cross multiply
    699,193,816.80x = 1,048,790,725.20 × 440,700,914.40
  4. Step 4: Simplify right side
    699,193,816.80x = 462,203,031,609,879,104
  5. Step 5: Solve for x
    x = 462,203,031,609,879,104/699,193,816.80
  6. Step 6: Final answer
    x = 661,051,371.60

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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.