Home / 538,800,947.30-808,201,420.95-409,660,784.30

Finding the Fourth Proportional to 538,800,947.30, 808,201,420.95 and 409,660,784.30

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Solution

The fourth proportional to 538,800,947.30, 808,201,420.95 and 409,660,784.30 is: 614,491,176.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,800,947.30 : 808,201,420.95 = 409,660,784.30 : x
  2. Step 2: Convert to fraction form
    538,800,947.30/808,201,420.95 = 409,660,784.30/x
  3. Step 3: Cross multiply
    538,800,947.30x = 808,201,420.95 × 409,660,784.30
  4. Step 4: Simplify right side
    538,800,947.30x = 331,088,427,978,751,488
  5. Step 5: Solve for x
    x = 331,088,427,978,751,488/538,800,947.30
  6. Step 6: Final answer
    x = 614,491,176.45

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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.