Home / 148,648,389-205,134,776.82-83,459,692.68

Finding the Fourth Proportional to 148,648,389, 205,134,776.82 and 83,459,692.68

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Solution

The fourth proportional to 148,648,389, 205,134,776.82 and 83,459,692.68 is: 115,174,375.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,648,389 : 205,134,776.82 = 83,459,692.68 : x
  2. Step 2: Convert to fraction form
    148,648,389/205,134,776.82 = 83,459,692.68/x
  3. Step 3: Cross multiply
    148,648,389x = 205,134,776.82 × 83,459,692.68
  4. Step 4: Simplify right side
    148,648,389x = 17,120,485,431,377,588
  5. Step 5: Solve for x
    x = 17,120,485,431,377,588/148,648,389
  6. Step 6: Final answer
    x = 115,174,375.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.