Home / 139,968,122.70-209,952,184.05-138,624,429.90

Finding the Fourth Proportional to 139,968,122.70, 209,952,184.05 and 138,624,429.90

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Solution

The fourth proportional to 139,968,122.70, 209,952,184.05 and 138,624,429.90 is: 207,936,644.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,122.70 : 209,952,184.05 = 138,624,429.90 : x
  2. Step 2: Convert to fraction form
    139,968,122.70/209,952,184.05 = 138,624,429.90/x
  3. Step 3: Cross multiply
    139,968,122.70x = 209,952,184.05 × 138,624,429.90
  4. Step 4: Simplify right side
    139,968,122.70x = 29,104,501,820,191,124
  5. Step 5: Solve for x
    x = 29,104,501,820,191,124/139,968,122.70
  6. Step 6: Final answer
    x = 207,936,644.85

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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.