Home / 99,543,999.70-149,315,999.55-82,537,887.70

Finding the Fourth Proportional to 99,543,999.70, 149,315,999.55 and 82,537,887.70

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Solution

The fourth proportional to 99,543,999.70, 149,315,999.55 and 82,537,887.70 is: 123,806,831.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,543,999.70 : 149,315,999.55 = 82,537,887.70 : x
  2. Step 2: Convert to fraction form
    99,543,999.70/149,315,999.55 = 82,537,887.70/x
  3. Step 3: Cross multiply
    99,543,999.70x = 149,315,999.55 × 82,537,887.70
  4. Step 4: Simplify right side
    99,543,999.70x = 12,324,227,202,671,152
  5. Step 5: Solve for x
    x = 12,324,227,202,671,152/99,543,999.70
  6. Step 6: Final answer
    x = 123,806,831.55

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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.