Home / 323,606,484.72-485,356,581.36-139,324,340.52

Finding the Fourth Proportional to 323,606,484.72, 485,356,581.36 and 139,324,340.52

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Solution

The fourth proportional to 323,606,484.72, 485,356,581.36 and 139,324,340.52 is: 208,963,629.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,606,484.72 : 485,356,581.36 = 139,324,340.52 : x
  2. Step 2: Convert to fraction form
    323,606,484.72/485,356,581.36 = 139,324,340.52/x
  3. Step 3: Cross multiply
    323,606,484.72x = 485,356,581.36 × 139,324,340.52
  4. Step 4: Simplify right side
    323,606,484.72x = 67,621,985,615,023,728
  5. Step 5: Solve for x
    x = 67,621,985,615,023,728/323,606,484.72
  6. Step 6: Final answer
    x = 208,963,629.62

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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.