Home / 148,621,744.42-205,086,006.90-85,901,905.36

Finding the Fourth Proportional to 148,621,744.42, 205,086,006.90 and 85,901,905.36

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Solution

The fourth proportional to 148,621,744.42, 205,086,006.90 and 85,901,905.36 is: 118,537,693.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,621,744.42 : 205,086,006.90 = 85,901,905.36 : x
  2. Step 2: Convert to fraction form
    148,621,744.42/205,086,006.90 = 85,901,905.36/x
  3. Step 3: Cross multiply
    148,621,744.42x = 205,086,006.90 × 85,901,905.36
  4. Step 4: Simplify right side
    148,621,744.42x = 17,617,278,755,384,108
  5. Step 5: Solve for x
    x = 17,617,278,755,384,108/148,621,744.42
  6. Step 6: Final answer
    x = 118,537,693.28

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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.