Home / 721,115,831.52-1,081,672,065.38-473,682,942.90

Finding the Fourth Proportional to 721,115,831.52, 1,081,672,065.38 and 473,682,942.90

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Solution

The fourth proportional to 721,115,831.52, 1,081,672,065.38 and 473,682,942.90 is: 710,523,309.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,115,831.52 : 1,081,672,065.38 = 473,682,942.90 : x
  2. Step 2: Convert to fraction form
    721,115,831.52/1,081,672,065.38 = 473,682,942.90/x
  3. Step 3: Cross multiply
    721,115,831.52x = 1,081,672,065.38 × 473,682,942.90
  4. Step 4: Simplify right side
    721,115,831.52x = 512,369,607,183,103,744
  5. Step 5: Solve for x
    x = 512,369,607,183,103,744/721,115,831.52
  6. Step 6: Final answer
    x = 710,523,309.55

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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.