Home / 20,624,122.70-28,461,483.93-11,331,887.78

Finding the Fourth Proportional to 20,624,122.70, 28,461,483.93 and 11,331,887.78

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Solution

The fourth proportional to 20,624,122.70, 28,461,483.93 and 11,331,887.78 is: 15,638,112.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624,122.70 : 28,461,483.93 = 11,331,887.78 : x
  2. Step 2: Convert to fraction form
    20,624,122.70/28,461,483.93 = 11,331,887.78/x
  3. Step 3: Cross multiply
    20,624,122.70x = 28,461,483.93 × 11,331,887.78
  4. Step 4: Simplify right side
    20,624,122.70x = 322,522,341,947,033.38
  5. Step 5: Solve for x
    x = 322,522,341,947,033.38/20,624,122.70
  6. Step 6: Final answer
    x = 15,638,112.06

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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.