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Finding the Fourth Proportional to 275,779,894.81, 380,599,006.41 and 158,327,890.87

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Solution

The fourth proportional to 275,779,894.81, 380,599,006.41 and 158,327,890.87 is: 218,505,551.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,779,894.81 : 380,599,006.41 = 158,327,890.87 : x
  2. Step 2: Convert to fraction form
    275,779,894.81/380,599,006.41 = 158,327,890.87/x
  3. Step 3: Cross multiply
    275,779,894.81x = 380,599,006.41 × 158,327,890.87
  4. Step 4: Simplify right side
    275,779,894.81x = 60,259,437,952,112,920
  5. Step 5: Solve for x
    x = 60,259,437,952,112,920/275,779,894.81
  6. Step 6: Final answer
    x = 218,505,551.30

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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.