Home / 12,078,409.50-16,662,712.77-7,180,852.68

Finding the Fourth Proportional to 12,078,409.50, 16,662,712.77 and 7,180,852.68

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Solution

The fourth proportional to 12,078,409.50, 16,662,712.77 and 7,180,852.68 is: 9,906,311.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078,409.50 : 16,662,712.77 = 7,180,852.68 : x
  2. Step 2: Convert to fraction form
    12,078,409.50/16,662,712.77 = 7,180,852.68/x
  3. Step 3: Cross multiply
    12,078,409.50x = 16,662,712.77 × 7,180,852.68
  4. Step 4: Simplify right side
    12,078,409.50x = 119,652,485,650,524.72
  5. Step 5: Solve for x
    x = 119,652,485,650,524.72/12,078,409.50
  6. Step 6: Final answer
    x = 9,906,311.39

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1.5x scale

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.