Home / 99,657,190.80-149,485,786.20-39,072,916.80

Finding the Fourth Proportional to 99,657,190.80, 149,485,786.20 and 39,072,916.80

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Solution

The fourth proportional to 99,657,190.80, 149,485,786.20 and 39,072,916.80 is: 58,609,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,657,190.80 : 149,485,786.20 = 39,072,916.80 : x
  2. Step 2: Convert to fraction form
    99,657,190.80/149,485,786.20 = 39,072,916.80/x
  3. Step 3: Cross multiply
    99,657,190.80x = 149,485,786.20 × 39,072,916.80
  4. Step 4: Simplify right side
    99,657,190.80x = 5,840,845,686,975,187
  5. Step 5: Solve for x
    x = 5,840,845,686,975,187/99,657,190.80
  6. Step 6: Final answer
    x = 58,609,375.20

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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.