Home / 20,853,895.90-31,240,120.70-9,908,509.27

Finding the Fourth Proportional to 20,853,895.90, 31,240,120.70 and 9,908,509.27

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Solution

The fourth proportional to 20,853,895.90, 31,240,120.70 and 9,908,509.27 is: 14,843,414.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853,895.90 : 31,240,120.70 = 9,908,509.27 : x
  2. Step 2: Convert to fraction form
    20,853,895.90/31,240,120.70 = 9,908,509.27/x
  3. Step 3: Cross multiply
    20,853,895.90x = 31,240,120.70 × 9,908,509.27
  4. Step 4: Simplify right side
    20,853,895.90x = 309,543,025,502,326.31
  5. Step 5: Solve for x
    x = 309,543,025,502,326.31/20,853,895.90
  6. Step 6: Final answer
    x = 14,843,414.73

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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.