Home / 323,870,345.40-485,805,518.10-292,629,487.80

Finding the Fourth Proportional to 323,870,345.40, 485,805,518.10 and 292,629,487.80

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Solution

The fourth proportional to 323,870,345.40, 485,805,518.10 and 292,629,487.80 is: 438,944,231.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,870,345.40 : 485,805,518.10 = 292,629,487.80 : x
  2. Step 2: Convert to fraction form
    323,870,345.40/485,805,518.10 = 292,629,487.80/x
  3. Step 3: Cross multiply
    323,870,345.40x = 485,805,518.10 × 292,629,487.80
  4. Step 4: Simplify right side
    323,870,345.40x = 142,161,019,932,016,640
  5. Step 5: Solve for x
    x = 142,161,019,932,016,640/323,870,345.40
  6. Step 6: Final answer
    x = 438,944,231.70

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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.