Home / 28,762,581.60-43,143,872.40-21,204,309.60

Finding the Fourth Proportional to 28,762,581.60, 43,143,872.40 and 21,204,309.60

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Solution

The fourth proportional to 28,762,581.60, 43,143,872.40 and 21,204,309.60 is: 31,806,464.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,762,581.60 : 43,143,872.40 = 21,204,309.60 : x
  2. Step 2: Convert to fraction form
    28,762,581.60/43,143,872.40 = 21,204,309.60/x
  3. Step 3: Cross multiply
    28,762,581.60x = 43,143,872.40 × 21,204,309.60
  4. Step 4: Simplify right side
    28,762,581.60x = 914,836,027,712,495.12
  5. Step 5: Solve for x
    x = 914,836,027,712,495.12/28,762,581.60
  6. Step 6: Final answer
    x = 31,806,464.40

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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.