Home / 518,275,432.54-711,413,010.78-458,222,599.54

Finding the Fourth Proportional to 518,275,432.54, 711,413,010.78 and 458,222,599.54

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Solution

The fourth proportional to 518,275,432.54, 711,413,010.78 and 458,222,599.54 is: 628,981,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,275,432.54 : 711,413,010.78 = 458,222,599.54 : x
  2. Step 2: Convert to fraction form
    518,275,432.54/711,413,010.78 = 458,222,599.54/x
  3. Step 3: Cross multiply
    518,275,432.54x = 711,413,010.78 × 458,222,599.54
  4. Step 4: Simplify right side
    518,275,432.54x = 325,985,519,143,898,560
  5. Step 5: Solve for x
    x = 325,985,519,143,898,560/518,275,432.54
  6. Step 6: Final answer
    x = 628,981,230.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.