Home / 242,638,010.40-363,957,015.60-78,875,450.40

Finding the Fourth Proportional to 242,638,010.40, 363,957,015.60 and 78,875,450.40

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Solution

The fourth proportional to 242,638,010.40, 363,957,015.60 and 78,875,450.40 is: 118,313,175.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,638,010.40 : 363,957,015.60 = 78,875,450.40 : x
  2. Step 2: Convert to fraction form
    242,638,010.40/363,957,015.60 = 78,875,450.40/x
  3. Step 3: Cross multiply
    242,638,010.40x = 363,957,015.60 × 78,875,450.40
  4. Step 4: Simplify right side
    242,638,010.40x = 28,707,273,531,689,832
  5. Step 5: Solve for x
    x = 28,707,273,531,689,832/242,638,010.40
  6. Step 6: Final answer
    x = 118,313,175.60

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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.