Home / 639,615,072.96-882,669,096-346,259,640.96

Finding the Fourth Proportional to 639,615,072.96, 882,669,096 and 346,259,640.96

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Solution

The fourth proportional to 639,615,072.96, 882,669,096 and 346,259,640.96 is: 477,838,464.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,615,072.96 : 882,669,096 = 346,259,640.96 : x
  2. Step 2: Convert to fraction form
    639,615,072.96/882,669,096 = 346,259,640.96/x
  3. Step 3: Cross multiply
    639,615,072.96x = 882,669,096 × 346,259,640.96
  4. Step 4: Simplify right side
    639,615,072.96x = 305,632,684,267,447,744
  5. Step 5: Solve for x
    x = 305,632,684,267,447,744/639,615,072.96
  6. Step 6: Final answer
    x = 477,838,464.40

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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.