Home / 465,928,790.76-642,995,189.32-257,098,381.56

Finding the Fourth Proportional to 465,928,790.76, 642,995,189.32 and 257,098,381.56

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Solution

The fourth proportional to 465,928,790.76, 642,995,189.32 and 257,098,381.56 is: 354,803,192.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,928,790.76 : 642,995,189.32 = 257,098,381.56 : x
  2. Step 2: Convert to fraction form
    465,928,790.76/642,995,189.32 = 257,098,381.56/x
  3. Step 3: Cross multiply
    465,928,790.76x = 642,995,189.32 × 257,098,381.56
  4. Step 4: Simplify right side
    465,928,790.76x = 165,313,022,525,037,824
  5. Step 5: Solve for x
    x = 165,313,022,525,037,824/465,928,790.76
  6. Step 6: Final answer
    x = 354,803,192.68

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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.