Home / 139,523,072.36-209,143,921.10-87,744,679.59

Finding the Fourth Proportional to 139,523,072.36, 209,143,921.10 and 87,744,679.59

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Solution

The fourth proportional to 139,523,072.36, 209,143,921.10 and 87,744,679.59 is: 131,528,542.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,523,072.36 : 209,143,921.10 = 87,744,679.59 : x
  2. Step 2: Convert to fraction form
    139,523,072.36/209,143,921.10 = 87,744,679.59/x
  3. Step 3: Cross multiply
    139,523,072.36x = 209,143,921.10 × 87,744,679.59
  4. Step 4: Simplify right side
    139,523,072.36x = 18,351,266,345,115,740
  5. Step 5: Solve for x
    x = 18,351,266,345,115,740/139,523,072.36
  6. Step 6: Final answer
    x = 131,528,542.45

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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.