Home / 28,858,032.50-39,825,336.69-15,980,976.50

Finding the Fourth Proportional to 28,858,032.50, 39,825,336.69 and 15,980,976.50

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Solution

The fourth proportional to 28,858,032.50, 39,825,336.69 and 15,980,976.50 is: 22,054,440.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,858,032.50 : 39,825,336.69 = 15,980,976.50 : x
  2. Step 2: Convert to fraction form
    28,858,032.50/39,825,336.69 = 15,980,976.50/x
  3. Step 3: Cross multiply
    28,858,032.50x = 39,825,336.69 × 15,980,976.50
  4. Step 4: Simplify right side
    28,858,032.50x = 636,447,769,747,477.75
  5. Step 5: Solve for x
    x = 636,447,769,747,477.75/28,858,032.50
  6. Step 6: Final answer
    x = 22,054,440.81

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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.