Home / 39,861,355.17-55,008,669.69-21,526,640.67

Finding the Fourth Proportional to 39,861,355.17, 55,008,669.69 and 21,526,640.67

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Solution

The fourth proportional to 39,861,355.17, 55,008,669.69 and 21,526,640.67 is: 29,706,763.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,861,355.17 : 55,008,669.69 = 21,526,640.67 : x
  2. Step 2: Convert to fraction form
    39,861,355.17/55,008,669.69 = 21,526,640.67/x
  3. Step 3: Cross multiply
    39,861,355.17x = 55,008,669.69 × 21,526,640.67
  4. Step 4: Simplify right side
    39,861,355.17x = 1,184,151,866,151,350.25
  5. Step 5: Solve for x
    x = 1,184,151,866,151,350.25/39,861,355.17
  6. Step 6: Final answer
    x = 29,706,763.88

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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.