Home / 320,896,947.28-481,391,125.16-99,587,407.94

Finding the Fourth Proportional to 320,896,947.28, 481,391,125.16 and 99,587,407.94

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Solution

The fourth proportional to 320,896,947.28, 481,391,125.16 and 99,587,407.94 is: 149,395,295.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,896,947.28 : 481,391,125.16 = 99,587,407.94 : x
  2. Step 2: Convert to fraction form
    320,896,947.28/481,391,125.16 = 99,587,407.94/x
  3. Step 3: Cross multiply
    320,896,947.28x = 481,391,125.16 × 99,587,407.94
  4. Step 4: Simplify right side
    320,896,947.28x = 47,940,494,360,004,520
  5. Step 5: Solve for x
    x = 47,940,494,360,004,520/320,896,947.28
  6. Step 6: Final answer
    x = 149,395,295.80

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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.