Home / 28,762,584.60-43,143,876.90-21,204,312.60

Finding the Fourth Proportional to 28,762,584.60, 43,143,876.90 and 21,204,312.60

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Solution

The fourth proportional to 28,762,584.60, 43,143,876.90 and 21,204,312.60 is: 31,806,468.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,762,584.60 : 43,143,876.90 = 21,204,312.60 : x
  2. Step 2: Convert to fraction form
    28,762,584.60/43,143,876.90 = 21,204,312.60/x
  3. Step 3: Cross multiply
    28,762,584.60x = 43,143,876.90 × 21,204,312.60
  4. Step 4: Simplify right side
    28,762,584.60x = 914,836,252,563,519
  5. Step 5: Solve for x
    x = 914,836,252,563,519/28,762,584.60
  6. Step 6: Final answer
    x = 31,806,468.90

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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.