Home / 210,015,568.80-314,928,874.80-80,580,160.80

Finding the Fourth Proportional to 210,015,568.80, 314,928,874.80 and 80,580,160.80

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Solution

The fourth proportional to 210,015,568.80, 314,928,874.80 and 80,580,160.80 is: 120,833,991.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,015,568.80 : 314,928,874.80 = 80,580,160.80 : x
  2. Step 2: Convert to fraction form
    210,015,568.80/314,928,874.80 = 80,580,160.80/x
  3. Step 3: Cross multiply
    210,015,568.80x = 314,928,874.80 × 80,580,160.80
  4. Step 4: Simplify right side
    210,015,568.80x = 25,377,019,371,947,068
  5. Step 5: Solve for x
    x = 25,377,019,371,947,068/210,015,568.80
  6. Step 6: Final answer
    x = 120,833,991.10

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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.