Home / 12,946,651.58-17,866,291.22-7,145,433.20

Finding the Fourth Proportional to 12,946,651.58, 17,866,291.22 and 7,145,433.20

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Solution

The fourth proportional to 12,946,651.58, 17,866,291.22 and 7,145,433.20 is: 9,860,649.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946,651.58 : 17,866,291.22 = 7,145,433.20 : x
  2. Step 2: Convert to fraction form
    12,946,651.58/17,866,291.22 = 7,145,433.20/x
  3. Step 3: Cross multiply
    12,946,651.58x = 17,866,291.22 × 7,145,433.20
  4. Step 4: Simplify right side
    12,946,651.58x = 127,662,390,444,256.50
  5. Step 5: Solve for x
    x = 127,662,390,444,256.50/12,946,651.58
  6. Step 6: Final answer
    x = 9,860,649.27

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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.