Home / 21,243,052.35-29,310,373.40-12,074,973.39

Finding the Fourth Proportional to 21,243,052.35, 29,310,373.40 and 12,074,973.39

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Solution

The fourth proportional to 21,243,052.35, 29,310,373.40 and 12,074,973.39 is: 16,660,599.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,243,052.35 : 29,310,373.40 = 12,074,973.39 : x
  2. Step 2: Convert to fraction form
    21,243,052.35/29,310,373.40 = 12,074,973.39/x
  3. Step 3: Cross multiply
    21,243,052.35x = 29,310,373.40 × 12,074,973.39
  4. Step 4: Simplify right side
    21,243,052.35x = 353,921,978,795,589
  5. Step 5: Solve for x
    x = 353,921,978,795,589/21,243,052.35
  6. Step 6: Final answer
    x = 16,660,599.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.