Home / 21,297,748.90-31,946,623.35-13,235,592.10

Finding the Fourth Proportional to 21,297,748.90, 31,946,623.35 and 13,235,592.10

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Solution

The fourth proportional to 21,297,748.90, 31,946,623.35 and 13,235,592.10 is: 19,853,388.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,297,748.90 : 31,946,623.35 = 13,235,592.10 : x
  2. Step 2: Convert to fraction form
    21,297,748.90/31,946,623.35 = 13,235,592.10/x
  3. Step 3: Cross multiply
    21,297,748.90x = 31,946,623.35 × 13,235,592.10
  4. Step 4: Simplify right side
    21,297,748.90x = 422,832,475,632,935.56
  5. Step 5: Solve for x
    x = 422,832,475,632,935.56/21,297,748.90
  6. Step 6: Final answer
    x = 19,853,388.15

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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.