Home / 28,377,275.94-39,160,640.10-15,324,533.79

Finding the Fourth Proportional to 28,377,275.94, 39,160,640.10 and 15,324,533.79

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Solution

The fourth proportional to 28,377,275.94, 39,160,640.10 and 15,324,533.79 is: 21,147,856.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,377,275.94 : 39,160,640.10 = 15,324,533.79 : x
  2. Step 2: Convert to fraction form
    28,377,275.94/39,160,640.10 = 15,324,533.79/x
  3. Step 3: Cross multiply
    28,377,275.94x = 39,160,640.10 × 15,324,533.79
  4. Step 4: Simplify right side
    28,377,275.94x = 600,118,552,450,479
  5. Step 5: Solve for x
    x = 600,118,552,450,479/28,377,275.94
  6. Step 6: Final answer
    x = 21,147,856.25

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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.