Home / 985,794,391.59-1,360,396,590.48-539,785,964.72

Finding the Fourth Proportional to 985,794,391.59, 1,360,396,590.48 and 539,785,964.72

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Solution

The fourth proportional to 985,794,391.59, 1,360,396,590.48 and 539,785,964.72 is: 744,904,812.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,794,391.59 : 1,360,396,590.48 = 539,785,964.72 : x
  2. Step 2: Convert to fraction form
    985,794,391.59/1,360,396,590.48 = 539,785,964.72/x
  3. Step 3: Cross multiply
    985,794,391.59x = 1,360,396,590.48 × 539,785,964.72
  4. Step 4: Simplify right side
    985,794,391.59x = 734,322,985,987,243,648
  5. Step 5: Solve for x
    x = 734,322,985,987,243,648/985,794,391.59
  6. Step 6: Final answer
    x = 744,904,812.05

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1.5x scale

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.