Home / 131,616,205.08-181,628,144.85-72,877,608.69

Finding the Fourth Proportional to 131,616,205.08, 181,628,144.85 and 72,877,608.69

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Solution

The fourth proportional to 131,616,205.08, 181,628,144.85 and 72,877,608.69 is: 100,569,871.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,616,205.08 : 181,628,144.85 = 72,877,608.69 : x
  2. Step 2: Convert to fraction form
    131,616,205.08/181,628,144.85 = 72,877,608.69/x
  3. Step 3: Cross multiply
    131,616,205.08x = 181,628,144.85 × 72,877,608.69
  4. Step 4: Simplify right side
    131,616,205.08x = 13,236,624,867,468,938
  5. Step 5: Solve for x
    x = 13,236,624,867,468,938/131,616,205.08
  6. Step 6: Final answer
    x = 100,569,871.77

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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.