Home / 638,004,831.60-956,629,333.80-331,894,815.60

Finding the Fourth Proportional to 638,004,831.60, 956,629,333.80 and 331,894,815.60

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Solution

The fourth proportional to 638,004,831.60, 956,629,333.80 and 331,894,815.60 is: 497,645,629.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,004,831.60 : 956,629,333.80 = 331,894,815.60 : x
  2. Step 2: Convert to fraction form
    638,004,831.60/956,629,333.80 = 331,894,815.60/x
  3. Step 3: Cross multiply
    638,004,831.60x = 956,629,333.80 × 331,894,815.60
  4. Step 4: Simplify right side
    638,004,831.60x = 317,500,316,339,101,824
  5. Step 5: Solve for x
    x = 317,500,316,339,101,824/638,004,831.60
  6. Step 6: Final answer
    x = 497,645,629.96

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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.