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Finding the Fourth Proportional to 221,465,343.60, 332,098,482.60 and 85,105,407.60

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Solution

The fourth proportional to 221,465,343.60, 332,098,482.60 and 85,105,407.60 is: 127,619,862.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,465,343.60 : 332,098,482.60 = 85,105,407.60 : x
  2. Step 2: Convert to fraction form
    221,465,343.60/332,098,482.60 = 85,105,407.60/x
  3. Step 3: Cross multiply
    221,465,343.60x = 332,098,482.60 × 85,105,407.60
  4. Step 4: Simplify right side
    221,465,343.60x = 28,263,376,725,014,508
  5. Step 5: Solve for x
    x = 28,263,376,725,014,508/221,465,343.60
  6. Step 6: Final answer
    x = 127,619,862.62

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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.