Home / 38,578,900.80-57,787,869.60-18,126,076.80

Finding the Fourth Proportional to 38,578,900.80, 57,787,869.60 and 18,126,076.80

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Solution

The fourth proportional to 38,578,900.80, 57,787,869.60 and 18,126,076.80 is: 27,151,301.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,578,900.80 : 57,787,869.60 = 18,126,076.80 : x
  2. Step 2: Convert to fraction form
    38,578,900.80/57,787,869.60 = 18,126,076.80/x
  3. Step 3: Cross multiply
    38,578,900.80x = 57,787,869.60 × 18,126,076.80
  4. Step 4: Simplify right side
    38,578,900.80x = 1,047,467,362,477,985.38
  5. Step 5: Solve for x
    x = 1,047,467,362,477,985.38/38,578,900.80
  6. Step 6: Final answer
    x = 27,151,301.38

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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.