Home / 21,025,871.20-31,529,590.80-9,662,543.20

Finding the Fourth Proportional to 21,025,871.20, 31,529,590.80 and 9,662,543.20

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Solution

The fourth proportional to 21,025,871.20, 31,529,590.80 and 9,662,543.20 is: 14,489,579.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,025,871.20 : 31,529,590.80 = 9,662,543.20 : x
  2. Step 2: Convert to fraction form
    21,025,871.20/31,529,590.80 = 9,662,543.20/x
  3. Step 3: Cross multiply
    21,025,871.20x = 31,529,590.80 × 9,662,543.20
  4. Step 4: Simplify right side
    21,025,871.20x = 304,656,033,183,322.56
  5. Step 5: Solve for x
    x = 304,656,033,183,322.56/21,025,871.20
  6. Step 6: Final answer
    x = 14,489,579.54

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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.