Home / 123,541,329.45-170,416,202.09-77,050,870.77

Finding the Fourth Proportional to 123,541,329.45, 170,416,202.09 and 77,050,870.77

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Solution

The fourth proportional to 123,541,329.45, 170,416,202.09 and 77,050,870.77 is: 106,286,024.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,541,329.45 : 170,416,202.09 = 77,050,870.77 : x
  2. Step 2: Convert to fraction form
    123,541,329.45/170,416,202.09 = 77,050,870.77/x
  3. Step 3: Cross multiply
    123,541,329.45x = 170,416,202.09 × 77,050,870.77
  4. Step 4: Simplify right side
    123,541,329.45x = 13,130,716,763,965,540
  5. Step 5: Solve for x
    x = 13,130,716,763,965,540/123,541,329.45
  6. Step 6: Final answer
    x = 106,286,024.46

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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.