Home / 8,285,918.60-12,423,809.10-3,231,403.40

Finding the Fourth Proportional to 8,285,918.60, 12,423,809.10 and 3,231,403.40

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Solution

The fourth proportional to 8,285,918.60, 12,423,809.10 and 3,231,403.40 is: 4,845,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285,918.60 : 12,423,809.10 = 3,231,403.40 : x
  2. Step 2: Convert to fraction form
    8,285,918.60/12,423,809.10 = 3,231,403.40/x
  3. Step 3: Cross multiply
    8,285,918.60x = 12,423,809.10 × 3,231,403.40
  4. Step 4: Simplify right side
    8,285,918.60x = 40,146,338,966,690.94
  5. Step 5: Solve for x
    x = 40,146,338,966,690.94/8,285,918.60
  6. Step 6: Final answer
    x = 4,845,128.33

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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.