Home / 320,379,347.71-480,587,520.67-123,643,781.84

Finding the Fourth Proportional to 320,379,347.71, 480,587,520.67 and 123,643,781.84

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Solution

The fourth proportional to 320,379,347.71, 480,587,520.67 and 123,643,781.84 is: 185,472,812.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,379,347.71 : 480,587,520.67 = 123,643,781.84 : x
  2. Step 2: Convert to fraction form
    320,379,347.71/480,587,520.67 = 123,643,781.84/x
  3. Step 3: Cross multiply
    320,379,347.71x = 480,587,520.67 × 123,643,781.84
  4. Step 4: Simplify right side
    320,379,347.71x = 59,421,658,561,642,800
  5. Step 5: Solve for x
    x = 59,421,658,561,642,800/320,379,347.71
  6. Step 6: Final answer
    x = 185,472,812.11

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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.