Home / 1,020,309,961.41-1,530,707,793.89-330,217,216.29

Finding the Fourth Proportional to 1,020,309,961.41, 1,530,707,793.89 and 330,217,216.29

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Solution

The fourth proportional to 1,020,309,961.41, 1,530,707,793.89 and 330,217,216.29 is: 495,404,421.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,309,961.41 : 1,530,707,793.89 = 330,217,216.29 : x
  2. Step 2: Convert to fraction form
    1,020,309,961.41/1,530,707,793.89 = 330,217,216.29/x
  3. Step 3: Cross multiply
    1,020,309,961.41x = 1,530,707,793.89 × 330,217,216.29
  4. Step 4: Simplify right side
    1,020,309,961.41x = 505,466,066,650,111,808
  5. Step 5: Solve for x
    x = 505,466,066,650,111,808/1,020,309,961.41
  6. Step 6: Final answer
    x = 495,404,421.96

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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.