Home / 699,193,815.80-1,048,790,723.70-440,700,913.40

Finding the Fourth Proportional to 699,193,815.80, 1,048,790,723.70 and 440,700,913.40

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Solution

The fourth proportional to 699,193,815.80, 1,048,790,723.70 and 440,700,913.40 is: 661,051,370.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,193,815.80 : 1,048,790,723.70 = 440,700,913.40 : x
  2. Step 2: Convert to fraction form
    699,193,815.80/1,048,790,723.70 = 440,700,913.40/x
  3. Step 3: Cross multiply
    699,193,815.80x = 1,048,790,723.70 × 440,700,913.40
  4. Step 4: Simplify right side
    699,193,815.80x = 462,203,029,900,036,992
  5. Step 5: Solve for x
    x = 462,203,029,900,036,992/699,193,815.80
  6. Step 6: Final answer
    x = 661,051,370.10

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1.5x scale

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.