Home / 1,020,309,963.92-1,530,707,797.63-330,217,218.80

Finding the Fourth Proportional to 1,020,309,963.92, 1,530,707,797.63 and 330,217,218.80

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Solution

The fourth proportional to 1,020,309,963.92, 1,530,707,797.63 and 330,217,218.80 is: 495,404,425.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,309,963.92 : 1,530,707,797.63 = 330,217,218.80 : x
  2. Step 2: Convert to fraction form
    1,020,309,963.92/1,530,707,797.63 = 330,217,218.80/x
  3. Step 3: Cross multiply
    1,020,309,963.92x = 1,530,707,797.63 × 330,217,218.80
  4. Step 4: Simplify right side
    1,020,309,963.92x = 505,466,071,728,851,904
  5. Step 5: Solve for x
    x = 505,466,071,728,851,904/1,020,309,963.92
  6. Step 6: Final answer
    x = 495,404,425.72

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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.