Home / 867,749,919.88-1,197,568,743.42-491,473,444.36

Finding the Fourth Proportional to 867,749,919.88, 1,197,568,743.42 and 491,473,444.36

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Solution

The fourth proportional to 867,749,919.88, 1,197,568,743.42 and 491,473,444.36 is: 678,275,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,749,919.88 : 1,197,568,743.42 = 491,473,444.36 : x
  2. Step 2: Convert to fraction form
    867,749,919.88/1,197,568,743.42 = 491,473,444.36/x
  3. Step 3: Cross multiply
    867,749,919.88x = 1,197,568,743.42 × 491,473,444.36
  4. Step 4: Simplify right side
    867,749,919.88x = 588,573,235,186,504,576
  5. Step 5: Solve for x
    x = 588,573,235,186,504,576/867,749,919.88
  6. Step 6: Final answer
    x = 678,275,182.40

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.