Home / 328,974,100.28-493,457,346.12-79,980,768.08

Finding the Fourth Proportional to 328,974,100.28, 493,457,346.12 and 79,980,768.08

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Solution

The fourth proportional to 328,974,100.28, 493,457,346.12 and 79,980,768.08 is: 119,970,227.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,974,100.28 : 493,457,346.12 = 79,980,768.08 : x
  2. Step 2: Convert to fraction form
    328,974,100.28/493,457,346.12 = 79,980,768.08/x
  3. Step 3: Cross multiply
    328,974,100.28x = 493,457,346.12 × 79,980,768.08
  4. Step 4: Simplify right side
    328,974,100.28x = 39,467,097,557,396,008
  5. Step 5: Solve for x
    x = 39,467,097,557,396,008/328,974,100.28
  6. Step 6: Final answer
    x = 119,970,227.21

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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.