Home / 103,626,857.34-142,945,114.05-66,957,428.34

Finding the Fourth Proportional to 103,626,857.34, 142,945,114.05 and 66,957,428.34

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Solution

The fourth proportional to 103,626,857.34, 142,945,114.05 and 66,957,428.34 is: 92,362,515.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,626,857.34 : 142,945,114.05 = 66,957,428.34 : x
  2. Step 2: Convert to fraction form
    103,626,857.34/142,945,114.05 = 66,957,428.34/x
  3. Step 3: Cross multiply
    103,626,857.34x = 142,945,114.05 × 66,957,428.34
  4. Step 4: Simplify right side
    103,626,857.34x = 9,571,237,230,556,004
  5. Step 5: Solve for x
    x = 9,571,237,230,556,004/103,626,857.34
  6. Step 6: Final answer
    x = 92,362,515.63

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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.