Home / 538,800,912.30-808,201,368.45-409,660,749.30

Finding the Fourth Proportional to 538,800,912.30, 808,201,368.45 and 409,660,749.30

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Solution

The fourth proportional to 538,800,912.30, 808,201,368.45 and 409,660,749.30 is: 614,491,123.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,800,912.30 : 808,201,368.45 = 409,660,749.30 : x
  2. Step 2: Convert to fraction form
    538,800,912.30/808,201,368.45 = 409,660,749.30/x
  3. Step 3: Cross multiply
    538,800,912.30x = 808,201,368.45 × 409,660,749.30
  4. Step 4: Simplify right side
    538,800,912.30x = 331,088,378,184,512,384
  5. Step 5: Solve for x
    x = 331,088,378,184,512,384/538,800,912.30
  6. Step 6: Final answer
    x = 614,491,123.95

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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.