Home / 20,417,091.53-28,177,571.88-15,251,485.01

Finding the Fourth Proportional to 20,417,091.53, 28,177,571.88 and 15,251,485.01

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Solution

The fourth proportional to 20,417,091.53, 28,177,571.88 and 15,251,485.01 is: 21,048,532.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417,091.53 : 28,177,571.88 = 15,251,485.01 : x
  2. Step 2: Convert to fraction form
    20,417,091.53/28,177,571.88 = 15,251,485.01/x
  3. Step 3: Cross multiply
    20,417,091.53x = 28,177,571.88 × 15,251,485.01
  4. Step 4: Simplify right side
    20,417,091.53x = 429,749,815,005,129.69
  5. Step 5: Solve for x
    x = 429,749,815,005,129.69/20,417,091.53
  6. Step 6: Final answer
    x = 21,048,532.52

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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.