Home / 398,680,824.80-598,021,237.20-374,447,115.20

Finding the Fourth Proportional to 398,680,824.80, 598,021,237.20 and 374,447,115.20

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Solution

The fourth proportional to 398,680,824.80, 598,021,237.20 and 374,447,115.20 is: 561,670,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,680,824.80 : 598,021,237.20 = 374,447,115.20 : x
  2. Step 2: Convert to fraction form
    398,680,824.80/598,021,237.20 = 374,447,115.20/x
  3. Step 3: Cross multiply
    398,680,824.80x = 598,021,237.20 × 374,447,115.20
  4. Step 4: Simplify right side
    398,680,824.80x = 223,927,327,097,874,944
  5. Step 5: Solve for x
    x = 223,927,327,097,874,944/398,680,824.80
  6. Step 6: Final answer
    x = 561,670,672.80

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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.