Home / 21,064,812.60-31,597,218.90-18,629,369.40

Finding the Fourth Proportional to 21,064,812.60, 31,597,218.90 and 18,629,369.40

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Solution

The fourth proportional to 21,064,812.60, 31,597,218.90 and 18,629,369.40 is: 27,944,054.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,064,812.60 : 31,597,218.90 = 18,629,369.40 : x
  2. Step 2: Convert to fraction form
    21,064,812.60/31,597,218.90 = 18,629,369.40/x
  3. Step 3: Cross multiply
    21,064,812.60x = 31,597,218.90 × 18,629,369.40
  4. Step 4: Simplify right side
    21,064,812.60x = 588,636,262,900,761.62
  5. Step 5: Solve for x
    x = 588,636,262,900,761.62/21,064,812.60
  6. Step 6: Final answer
    x = 27,944,054.10

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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.