Home / 221,337,389.40-331,881,668.10-85,027,219.80

Finding the Fourth Proportional to 221,337,389.40, 331,881,668.10 and 85,027,219.80

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Solution

The fourth proportional to 221,337,389.40, 331,881,668.10 and 85,027,219.80 is: 127,493,035.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,337,389.40 : 331,881,668.10 = 85,027,219.80 : x
  2. Step 2: Convert to fraction form
    221,337,389.40/331,881,668.10 = 85,027,219.80/x
  3. Step 3: Cross multiply
    221,337,389.40x = 331,881,668.10 × 85,027,219.80
  4. Step 4: Simplify right side
    221,337,389.40x = 28,218,975,541,129,348
  5. Step 5: Solve for x
    x = 28,218,975,541,129,348/221,337,389.40
  6. Step 6: Final answer
    x = 127,493,035.03

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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.