Home / 393,108,095.44-542,505,579.24-216,907,521.04

Finding the Fourth Proportional to 393,108,095.44, 542,505,579.24 and 216,907,521.04

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Solution

The fourth proportional to 393,108,095.44, 542,505,579.24 and 216,907,521.04 is: 299,341,432.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,108,095.44 : 542,505,579.24 = 216,907,521.04 : x
  2. Step 2: Convert to fraction form
    393,108,095.44/542,505,579.24 = 216,907,521.04/x
  3. Step 3: Cross multiply
    393,108,095.44x = 542,505,579.24 × 216,907,521.04
  4. Step 4: Simplify right side
    393,108,095.44x = 117,673,540,343,317,680
  5. Step 5: Solve for x
    x = 117,673,540,343,317,680/393,108,095.44
  6. Step 6: Final answer
    x = 299,341,432.31

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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.