Home / 420,616,636.50-630,360,980.22-327,356,214.48

Finding the Fourth Proportional to 420,616,636.50, 630,360,980.22 and 327,356,214.48

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Solution

The fourth proportional to 420,616,636.50, 630,360,980.22 and 327,356,214.48 is: 490,595,393.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,616,636.50 : 630,360,980.22 = 327,356,214.48 : x
  2. Step 2: Convert to fraction form
    420,616,636.50/630,360,980.22 = 327,356,214.48/x
  3. Step 3: Cross multiply
    420,616,636.50x = 630,360,980.22 × 327,356,214.48
  4. Step 4: Simplify right side
    420,616,636.50x = 206,352,584,240,721,376
  5. Step 5: Solve for x
    x = 206,352,584,240,721,376/420,616,636.50
  6. Step 6: Final answer
    x = 490,595,393.37

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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.