Home / 21,561,361.60-32,342,042.40-8,791,031.20

Finding the Fourth Proportional to 21,561,361.60, 32,342,042.40 and 8,791,031.20

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Solution

The fourth proportional to 21,561,361.60, 32,342,042.40 and 8,791,031.20 is: 13,186,546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,561,361.60 : 32,342,042.40 = 8,791,031.20 : x
  2. Step 2: Convert to fraction form
    21,561,361.60/32,342,042.40 = 8,791,031.20/x
  3. Step 3: Cross multiply
    21,561,361.60x = 32,342,042.40 × 8,791,031.20
  4. Step 4: Simplify right side
    21,561,361.60x = 284,319,903,810,122.81
  5. Step 5: Solve for x
    x = 284,319,903,810,122.81/21,561,361.60
  6. Step 6: Final answer
    x = 13,186,546.80

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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.