Home / 20,853,896.15-31,240,121.07-9,908,509.52

Finding the Fourth Proportional to 20,853,896.15, 31,240,121.07 and 9,908,509.52

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Solution

The fourth proportional to 20,853,896.15, 31,240,121.07 and 9,908,509.52 is: 14,843,415.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853,896.15 : 31,240,121.07 = 9,908,509.52 : x
  2. Step 2: Convert to fraction form
    20,853,896.15/31,240,121.07 = 9,908,509.52/x
  3. Step 3: Cross multiply
    20,853,896.15x = 31,240,121.07 × 9,908,509.52
  4. Step 4: Simplify right side
    20,853,896.15x = 309,543,037,028,047.56
  5. Step 5: Solve for x
    x = 309,543,037,028,047.56/20,853,896.15
  6. Step 6: Final answer
    x = 14,843,415.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.