Home / 28,025,457.87-38,675,155.94-15,635,553.21

Finding the Fourth Proportional to 28,025,457.87, 38,675,155.94 and 15,635,553.21

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Solution

The fourth proportional to 28,025,457.87, 38,675,155.94 and 15,635,553.21 is: 21,577,076.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025,457.87 : 38,675,155.94 = 15,635,553.21 : x
  2. Step 2: Convert to fraction form
    28,025,457.87/38,675,155.94 = 15,635,553.21/x
  3. Step 3: Cross multiply
    28,025,457.87x = 38,675,155.94 × 15,635,553.21
  4. Step 4: Simplify right side
    28,025,457.87x = 604,707,458,730,404.88
  5. Step 5: Solve for x
    x = 604,707,458,730,404.88/28,025,457.87
  6. Step 6: Final answer
    x = 21,577,076.87

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1.5x scale

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.