Home / 15,485,866.86-21,370,366.74-8,610,288.78

Finding the Fourth Proportional to 15,485,866.86, 21,370,366.74 and 8,610,288.78

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Solution

The fourth proportional to 15,485,866.86, 21,370,366.74 and 8,610,288.78 is: 11,882,126.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,485,866.86 : 21,370,366.74 = 8,610,288.78 : x
  2. Step 2: Convert to fraction form
    15,485,866.86/21,370,366.74 = 8,610,288.78/x
  3. Step 3: Cross multiply
    15,485,866.86x = 21,370,366.74 × 8,610,288.78
  4. Step 4: Simplify right side
    15,485,866.86x = 184,005,028,965,907.16
  5. Step 5: Solve for x
    x = 184,005,028,965,907.16/15,485,866.86
  6. Step 6: Final answer
    x = 11,882,126.50

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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.