Home / 21,706,870.20-32,513,066.10-13,172,321.40

Finding the Fourth Proportional to 21,706,870.20, 32,513,066.10 and 13,172,321.40

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Solution

The fourth proportional to 21,706,870.20, 32,513,066.10 and 13,172,321.40 is: 19,729,816.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,706,870.20 : 32,513,066.10 = 13,172,321.40 : x
  2. Step 2: Convert to fraction form
    21,706,870.20/32,513,066.10 = 13,172,321.40/x
  3. Step 3: Cross multiply
    21,706,870.20x = 32,513,066.10 × 13,172,321.40
  4. Step 4: Simplify right side
    21,706,870.20x = 428,272,556,368,644.56
  5. Step 5: Solve for x
    x = 428,272,556,368,644.56/21,706,870.20
  6. Step 6: Final answer
    x = 19,729,816.06

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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.