Home / 71,438,189.45-107,157,075.68-19,622,841.57

Finding the Fourth Proportional to 71,438,189.45, 107,157,075.68 and 19,622,841.57

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Solution

The fourth proportional to 71,438,189.45, 107,157,075.68 and 19,622,841.57 is: 29,434,205.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,438,189.45 : 107,157,075.68 = 19,622,841.57 : x
  2. Step 2: Convert to fraction form
    71,438,189.45/107,157,075.68 = 19,622,841.57/x
  3. Step 3: Cross multiply
    71,438,189.45x = 107,157,075.68 × 19,622,841.57
  4. Step 4: Simplify right side
    71,438,189.45x = 2,102,726,319,075,025.75
  5. Step 5: Solve for x
    x = 2,102,726,319,075,025.75/71,438,189.45
  6. Step 6: Final answer
    x = 29,434,205.09

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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.