Home / 140,505,428.70-210,758,143.05-89,424,107.10

Finding the Fourth Proportional to 140,505,428.70, 210,758,143.05 and 89,424,107.10

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Solution

The fourth proportional to 140,505,428.70, 210,758,143.05 and 89,424,107.10 is: 134,136,160.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,505,428.70 : 210,758,143.05 = 89,424,107.10 : x
  2. Step 2: Convert to fraction form
    140,505,428.70/210,758,143.05 = 89,424,107.10/x
  3. Step 3: Cross multiply
    140,505,428.70x = 210,758,143.05 × 89,424,107.10
  4. Step 4: Simplify right side
    140,505,428.70x = 18,846,858,756,300,320
  5. Step 5: Solve for x
    x = 18,846,858,756,300,320/140,505,428.70
  6. Step 6: Final answer
    x = 134,136,160.65

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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.