Home / 315,945,795.76-473,939,487.72-82,782,216.88

Finding the Fourth Proportional to 315,945,795.76, 473,939,487.72 and 82,782,216.88

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Solution

The fourth proportional to 315,945,795.76, 473,939,487.72 and 82,782,216.88 is: 124,178,773.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,945,795.76 : 473,939,487.72 = 82,782,216.88 : x
  2. Step 2: Convert to fraction form
    315,945,795.76/473,939,487.72 = 82,782,216.88/x
  3. Step 3: Cross multiply
    315,945,795.76x = 473,939,487.72 × 82,782,216.88
  4. Step 4: Simplify right side
    315,945,795.76x = 39,233,761,460,433,136
  5. Step 5: Solve for x
    x = 39,233,761,460,433,136/315,945,795.76
  6. Step 6: Final answer
    x = 124,178,773.66

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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.