Home / 28,956,857.60-43,435,286.40-21,398,585.60

Finding the Fourth Proportional to 28,956,857.60, 43,435,286.40 and 21,398,585.60

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Solution

The fourth proportional to 28,956,857.60, 43,435,286.40 and 21,398,585.60 is: 32,097,878.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,956,857.60 : 43,435,286.40 = 21,398,585.60 : x
  2. Step 2: Convert to fraction form
    28,956,857.60/43,435,286.40 = 21,398,585.60/x
  3. Step 3: Cross multiply
    28,956,857.60x = 43,435,286.40 × 21,398,585.60
  4. Step 4: Simplify right side
    28,956,857.60x = 929,453,694,090,915.88
  5. Step 5: Solve for x
    x = 929,453,694,090,915.88/28,956,857.60
  6. Step 6: Final answer
    x = 32,097,878.40

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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.