Home / 38,478,522.56-53,101,220.70-21,958,318.28

Finding the Fourth Proportional to 38,478,522.56, 53,101,220.70 and 21,958,318.28

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Solution

The fourth proportional to 38,478,522.56, 53,101,220.70 and 21,958,318.28 is: 30,302,969.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478,522.56 : 53,101,220.70 = 21,958,318.28 : x
  2. Step 2: Convert to fraction form
    38,478,522.56/53,101,220.70 = 21,958,318.28/x
  3. Step 3: Cross multiply
    38,478,522.56x = 53,101,220.70 × 21,958,318.28
  4. Step 4: Simplify right side
    38,478,522.56x = 1,166,013,505,187,124.50
  5. Step 5: Solve for x
    x = 1,166,013,505,187,124.50/38,478,522.56
  6. Step 6: Final answer
    x = 30,302,969.75

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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.