Home / 28,108,958.75-38,789,634.48-15,550,477.37

Finding the Fourth Proportional to 28,108,958.75, 38,789,634.48 and 15,550,477.37

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Solution

The fourth proportional to 28,108,958.75, 38,789,634.48 and 15,550,477.37 is: 21,459,255.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,108,958.75 : 38,789,634.48 = 15,550,477.37 : x
  2. Step 2: Convert to fraction form
    28,108,958.75/38,789,634.48 = 15,550,477.37/x
  3. Step 3: Cross multiply
    28,108,958.75x = 38,789,634.48 × 15,550,477.37
  4. Step 4: Simplify right side
    28,108,958.75x = 603,197,333,065,010.38
  5. Step 5: Solve for x
    x = 603,197,333,065,010.38/28,108,958.75
  6. Step 6: Final answer
    x = 21,459,255.69

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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.