Home / 201,065,907-277,493,472.30-121,724,700.60

Finding the Fourth Proportional to 201,065,907, 277,493,472.30 and 121,724,700.60

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Solution

The fourth proportional to 201,065,907, 277,493,472.30 and 121,724,700.60 is: 167,993,720.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,065,907 : 277,493,472.30 = 121,724,700.60 : x
  2. Step 2: Convert to fraction form
    201,065,907/277,493,472.30 = 121,724,700.60/x
  3. Step 3: Cross multiply
    201,065,907x = 277,493,472.30 × 121,724,700.60
  4. Step 4: Simplify right side
    201,065,907x = 33,777,809,834,171,892
  5. Step 5: Solve for x
    x = 33,777,809,834,171,892/201,065,907
  6. Step 6: Final answer
    x = 167,993,720.76

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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.