Home / 518,222,209.64-715,146,683.12-283,273,800.80

Finding the Fourth Proportional to 518,222,209.64, 715,146,683.12 and 283,273,800.80

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Solution

The fourth proportional to 518,222,209.64, 715,146,683.12 and 283,273,800.80 is: 390,917,863.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,222,209.64 : 715,146,683.12 = 283,273,800.80 : x
  2. Step 2: Convert to fraction form
    518,222,209.64/715,146,683.12 = 283,273,800.80/x
  3. Step 3: Cross multiply
    518,222,209.64x = 715,146,683.12 × 283,273,800.80
  4. Step 4: Simplify right side
    518,222,209.64x = 202,582,319,056,915,616
  5. Step 5: Solve for x
    x = 202,582,319,056,915,616/518,222,209.64
  6. Step 6: Final answer
    x = 390,917,863.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.