Home / 891,120,055.38-1,336,953,749.67-425,375,792.34

Finding the Fourth Proportional to 891,120,055.38, 1,336,953,749.67 and 425,375,792.34

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Solution

The fourth proportional to 891,120,055.38, 1,336,953,749.67 and 425,375,792.34 is: 638,194,323.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,120,055.38 : 1,336,953,749.67 = 425,375,792.34 : x
  2. Step 2: Convert to fraction form
    891,120,055.38/1,336,953,749.67 = 425,375,792.34/x
  3. Step 3: Cross multiply
    891,120,055.38x = 1,336,953,749.67 × 425,375,792.34
  4. Step 4: Simplify right side
    891,120,055.38x = 568,707,760,587,810,240
  5. Step 5: Solve for x
    x = 568,707,760,587,810,240/891,120,055.38
  6. Step 6: Final answer
    x = 638,194,323.15

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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.