Home / 8,083,542.40-12,128,521.20-3,291,582.40

Finding the Fourth Proportional to 8,083,542.40, 12,128,521.20 and 3,291,582.40

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Solution

The fourth proportional to 8,083,542.40, 12,128,521.20 and 3,291,582.40 is: 4,938,679.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,083,542.40 : 12,128,521.20 = 3,291,582.40 : x
  2. Step 2: Convert to fraction form
    8,083,542.40/12,128,521.20 = 3,291,582.40/x
  3. Step 3: Cross multiply
    8,083,542.40x = 12,128,521.20 × 3,291,582.40
  4. Step 4: Simplify right side
    8,083,542.40x = 39,922,026,919,946.88
  5. Step 5: Solve for x
    x = 39,922,026,919,946.88/8,083,542.40
  6. Step 6: Final answer
    x = 4,938,679.72

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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.