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Finding the Fourth Proportional to 14,572,819.20, 21,873,225.60 and 7,392,460.80

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Solution

The fourth proportional to 14,572,819.20, 21,873,225.60 and 7,392,460.80 is: 11,095,791.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,572,819.20 : 21,873,225.60 = 7,392,460.80 : x
  2. Step 2: Convert to fraction form
    14,572,819.20/21,873,225.60 = 7,392,460.80/x
  3. Step 3: Cross multiply
    14,572,819.20x = 21,873,225.60 × 7,392,460.80
  4. Step 4: Simplify right side
    14,572,819.20x = 161,696,962,817,556.50
  5. Step 5: Solve for x
    x = 161,696,962,817,556.50/14,572,819.20
  6. Step 6: Final answer
    x = 11,095,791.46

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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.