Home / 21,020,388.20-31,544,579.10-9,654,986.60

Finding the Fourth Proportional to 21,020,388.20, 31,544,579.10 and 9,654,986.60

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Solution

The fourth proportional to 21,020,388.20, 31,544,579.10 and 9,654,986.60 is: 14,488,908.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020,388.20 : 31,544,579.10 = 9,654,986.60 : x
  2. Step 2: Convert to fraction form
    21,020,388.20/31,544,579.10 = 9,654,986.60/x
  3. Step 3: Cross multiply
    21,020,388.20x = 31,544,579.10 × 9,654,986.60
  4. Step 4: Simplify right side
    21,020,388.20x = 304,562,488,513,140.06
  5. Step 5: Solve for x
    x = 304,562,488,513,140.06/21,020,388.20
  6. Step 6: Final answer
    x = 14,488,908.84

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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.