Home / 53,253,939.48-79,883,188.54-20,912,839.84

Finding the Fourth Proportional to 53,253,939.48, 79,883,188.54 and 20,912,839.84

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Solution

The fourth proportional to 53,253,939.48, 79,883,188.54 and 20,912,839.84 is: 31,370,154.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,253,939.48 : 79,883,188.54 = 20,912,839.84 : x
  2. Step 2: Convert to fraction form
    53,253,939.48/79,883,188.54 = 20,912,839.84/x
  3. Step 3: Cross multiply
    53,253,939.48x = 79,883,188.54 × 20,912,839.84
  4. Step 4: Simplify right side
    53,253,939.48x = 1,670,584,327,845,543.50
  5. Step 5: Solve for x
    x = 1,670,584,327,845,543.50/53,253,939.48
  6. Step 6: Final answer
    x = 31,370,154.85

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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.