Home / 8,223,999.60-12,335,999.40-7,342,201.20

Finding the Fourth Proportional to 8,223,999.60, 12,335,999.40 and 7,342,201.20

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Solution

The fourth proportional to 8,223,999.60, 12,335,999.40 and 7,342,201.20 is: 11,013,301.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,223,999.60 : 12,335,999.40 = 7,342,201.20 : x
  2. Step 2: Convert to fraction form
    8,223,999.60/12,335,999.40 = 7,342,201.20/x
  3. Step 3: Cross multiply
    8,223,999.60x = 12,335,999.40 × 7,342,201.20
  4. Step 4: Simplify right side
    8,223,999.60x = 90,573,389,597,879.28
  5. Step 5: Solve for x
    x = 90,573,389,597,879.28/8,223,999.60
  6. Step 6: Final answer
    x = 11,013,301.80

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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.