Home / 28,837,449.50-39,795,738.75-15,785,541.36

Finding the Fourth Proportional to 28,837,449.50, 39,795,738.75 and 15,785,541.36

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Solution

The fourth proportional to 28,837,449.50, 39,795,738.75 and 15,785,541.36 is: 21,784,079.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,837,449.50 : 39,795,738.75 = 15,785,541.36 : x
  2. Step 2: Convert to fraction form
    28,837,449.50/39,795,738.75 = 15,785,541.36/x
  3. Step 3: Cross multiply
    28,837,449.50x = 39,795,738.75 × 15,785,541.36
  4. Step 4: Simplify right side
    28,837,449.50x = 628,197,279,989,879.62
  5. Step 5: Solve for x
    x = 628,197,279,989,879.62/28,837,449.50
  6. Step 6: Final answer
    x = 21,784,079.07

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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.