Home / 72,575,999.20-108,863,998.80-65,395,640.80

Finding the Fourth Proportional to 72,575,999.20, 108,863,998.80 and 65,395,640.80

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Solution

The fourth proportional to 72,575,999.20, 108,863,998.80 and 65,395,640.80 is: 98,093,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,575,999.20 : 108,863,998.80 = 65,395,640.80 : x
  2. Step 2: Convert to fraction form
    72,575,999.20/108,863,998.80 = 65,395,640.80/x
  3. Step 3: Cross multiply
    72,575,999.20x = 108,863,998.80 × 65,395,640.80
  4. Step 4: Simplify right side
    72,575,999.20x = 7,119,230,961,576,431
  5. Step 5: Solve for x
    x = 7,119,230,961,576,431/72,575,999.20
  6. Step 6: Final answer
    x = 98,093,461.20

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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.