Home / 12,826,886.20-19,240,329.30-7,955,999.80

Finding the Fourth Proportional to 12,826,886.20, 19,240,329.30 and 7,955,999.80

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Solution

The fourth proportional to 12,826,886.20, 19,240,329.30 and 7,955,999.80 is: 11,933,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,826,886.20 : 19,240,329.30 = 7,955,999.80 : x
  2. Step 2: Convert to fraction form
    12,826,886.20/19,240,329.30 = 7,955,999.80/x
  3. Step 3: Cross multiply
    12,826,886.20x = 19,240,329.30 × 7,955,999.80
  4. Step 4: Simplify right side
    12,826,886.20x = 153,076,056,062,734.16
  5. Step 5: Solve for x
    x = 153,076,056,062,734.16/12,826,886.20
  6. Step 6: Final answer
    x = 11,933,999.70

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1.5x scale

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.