Home / 699,193,813.80-1,048,790,720.70-440,700,911.40

Finding the Fourth Proportional to 699,193,813.80, 1,048,790,720.70 and 440,700,911.40

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Solution

The fourth proportional to 699,193,813.80, 1,048,790,720.70 and 440,700,911.40 is: 661,051,367.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,193,813.80 : 1,048,790,720.70 = 440,700,911.40 : x
  2. Step 2: Convert to fraction form
    699,193,813.80/1,048,790,720.70 = 440,700,911.40/x
  3. Step 3: Cross multiply
    699,193,813.80x = 1,048,790,720.70 × 440,700,911.40
  4. Step 4: Simplify right side
    699,193,813.80x = 462,203,026,480,352,832
  5. Step 5: Solve for x
    x = 462,203,026,480,352,832/699,193,813.80
  6. Step 6: Final answer
    x = 661,051,367.10

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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.