Home / 20,693,146.64-28,556,551.32-11,996,361.20

Finding the Fourth Proportional to 20,693,146.64, 28,556,551.32 and 11,996,361.20

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Solution

The fourth proportional to 20,693,146.64, 28,556,551.32 and 11,996,361.20 is: 16,554,983.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693,146.64 : 28,556,551.32 = 11,996,361.20 : x
  2. Step 2: Convert to fraction form
    20,693,146.64/28,556,551.32 = 11,996,361.20/x
  3. Step 3: Cross multiply
    20,693,146.64x = 28,556,551.32 × 11,996,361.20
  4. Step 4: Simplify right side
    20,693,146.64x = 342,574,704,261,056.75
  5. Step 5: Solve for x
    x = 342,574,704,261,056.75/20,693,146.64
  6. Step 6: Final answer
    x = 16,554,983.65

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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.