Home / 81,852,222.43-122,705,709.65-30,024,903.75

Finding the Fourth Proportional to 81,852,222.43, 122,705,709.65 and 30,024,903.75

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Solution

The fourth proportional to 81,852,222.43, 122,705,709.65 and 30,024,903.75 is: 45,010,715.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,852,222.43 : 122,705,709.65 = 30,024,903.75 : x
  2. Step 2: Convert to fraction form
    81,852,222.43/122,705,709.65 = 30,024,903.75/x
  3. Step 3: Cross multiply
    81,852,222.43x = 122,705,709.65 × 30,024,903.75
  4. Step 4: Simplify right side
    81,852,222.43x = 3,684,227,121,666,571.50
  5. Step 5: Solve for x
    x = 3,684,227,121,666,571.50/81,852,222.43
  6. Step 6: Final answer
    x = 45,010,715.81

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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.