Home / 287,313,851.21-430,970,782.51-68,964,193.27

Finding the Fourth Proportional to 287,313,851.21, 430,970,782.51 and 68,964,193.27

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Solution

The fourth proportional to 287,313,851.21, 430,970,782.51 and 68,964,193.27 is: 103,446,291.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,313,851.21 : 430,970,782.51 = 68,964,193.27 : x
  2. Step 2: Convert to fraction form
    287,313,851.21/430,970,782.51 = 68,964,193.27/x
  3. Step 3: Cross multiply
    287,313,851.21x = 430,970,782.51 × 68,964,193.27
  4. Step 4: Simplify right side
    287,313,851.21x = 29,721,552,339,367,692
  5. Step 5: Solve for x
    x = 29,721,552,339,367,692/287,313,851.21
  6. Step 6: Final answer
    x = 103,446,291.27

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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.