Home / 398,200,215,834.22-549,566,627,001.68-261,138,353,098.02

Finding the Fourth Proportional to 398,200,215,834.22, 549,566,627,001.68 and 261,138,353,098.02

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Solution

The fourth proportional to 398,200,215,834.22, 549,566,627,001.68 and 261,138,353,098.02 is: 360,403,932,961.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,200,215,834.22 : 549,566,627,001.68 = 261,138,353,098.02 : x
  2. Step 2: Convert to fraction form
    398,200,215,834.22/549,566,627,001.68 = 261,138,353,098.02/x
  3. Step 3: Cross multiply
    398,200,215,834.22x = 549,566,627,001.68 × 261,138,353,098.02
  4. Step 4: Simplify right side
    398,200,215,834.22x = 143,512,923,892,852,564,426,752
  5. Step 5: Solve for x
    x = 143,512,923,892,852,564,426,752/398,200,215,834.22
  6. Step 6: Final answer
    x = 360,403,932,961.71

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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.