Home / 405,932,871.33-559,897,922.43-372,549,912.84

Finding the Fourth Proportional to 405,932,871.33, 559,897,922.43 and 372,549,912.84

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Solution

The fourth proportional to 405,932,871.33, 559,897,922.43 and 372,549,912.84 is: 513,853,242.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,932,871.33 : 559,897,922.43 = 372,549,912.84 : x
  2. Step 2: Convert to fraction form
    405,932,871.33/559,897,922.43 = 372,549,912.84/x
  3. Step 3: Cross multiply
    405,932,871.33x = 559,897,922.43 × 372,549,912.84
  4. Step 4: Simplify right side
    405,932,871.33x = 208,589,922,200,593,536
  5. Step 5: Solve for x
    x = 208,589,922,200,593,536/405,932,871.33
  6. Step 6: Final answer
    x = 513,853,242.57

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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.