Home / 205,606,318.80-308,410,527.96-69,292,883.28

Finding the Fourth Proportional to 205,606,318.80, 308,410,527.96 and 69,292,883.28

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Solution

The fourth proportional to 205,606,318.80, 308,410,527.96 and 69,292,883.28 is: 103,939,678.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,606,318.80 : 308,410,527.96 = 69,292,883.28 : x
  2. Step 2: Convert to fraction form
    205,606,318.80/308,410,527.96 = 69,292,883.28/x
  3. Step 3: Cross multiply
    205,606,318.80x = 308,410,527.96 × 69,292,883.28
  4. Step 4: Simplify right side
    205,606,318.80x = 21,370,654,716,255,456
  5. Step 5: Solve for x
    x = 21,370,654,716,255,456/205,606,318.80
  6. Step 6: Final answer
    x = 103,939,678.71

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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.