Home / 1,020,309,865.44-1,530,707,650.02-330,217,120.32

Finding the Fourth Proportional to 1,020,309,865.44, 1,530,707,650.02 and 330,217,120.32

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Solution

The fourth proportional to 1,020,309,865.44, 1,530,707,650.02 and 330,217,120.32 is: 495,404,278.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,309,865.44 : 1,530,707,650.02 = 330,217,120.32 : x
  2. Step 2: Convert to fraction form
    1,020,309,865.44/1,530,707,650.02 = 330,217,120.32/x
  3. Step 3: Cross multiply
    1,020,309,865.44x = 1,530,707,650.02 × 330,217,120.32
  4. Step 4: Simplify right side
    1,020,309,865.44x = 505,465,872,241,398,784
  5. Step 5: Solve for x
    x = 505,465,872,241,398,784/1,020,309,865.44
  6. Step 6: Final answer
    x = 495,404,278.02

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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.