Home / 420,615,142.10-630,358,749.54-327,354,725.10

Finding the Fourth Proportional to 420,615,142.10, 630,358,749.54 and 327,354,725.10

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Solution

The fourth proportional to 420,615,142.10, 630,358,749.54 and 327,354,725.10 is: 490,593,168.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,615,142.10 : 630,358,749.54 = 327,354,725.10 : x
  2. Step 2: Convert to fraction form
    420,615,142.10/630,358,749.54 = 327,354,725.10/x
  3. Step 3: Cross multiply
    420,615,142.10x = 630,358,749.54 × 327,354,725.10
  4. Step 4: Simplify right side
    420,615,142.10x = 206,350,915,166,894,656
  5. Step 5: Solve for x
    x = 206,350,915,166,894,656/420,615,142.10
  6. Step 6: Final answer
    x = 490,593,168.23

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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.