Home / 1,020,309,963.42-1,530,707,796.88-330,217,218.30

Finding the Fourth Proportional to 1,020,309,963.42, 1,530,707,796.88 and 330,217,218.30

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Solution

The fourth proportional to 1,020,309,963.42, 1,530,707,796.88 and 330,217,218.30 is: 495,404,424.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,309,963.42 : 1,530,707,796.88 = 330,217,218.30 : x
  2. Step 2: Convert to fraction form
    1,020,309,963.42/1,530,707,796.88 = 330,217,218.30/x
  3. Step 3: Cross multiply
    1,020,309,963.42x = 1,530,707,796.88 × 330,217,218.30
  4. Step 4: Simplify right side
    1,020,309,963.42x = 505,466,070,715,835,072
  5. Step 5: Solve for x
    x = 505,466,070,715,835,072/1,020,309,963.42
  6. Step 6: Final answer
    x = 495,404,424.97

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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.