Home / 28,092,128.70-42,140,999.70-7,622,173.20

Finding the Fourth Proportional to 28,092,128.70, 42,140,999.70 and 7,622,173.20

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Solution

The fourth proportional to 28,092,128.70, 42,140,999.70 and 7,622,173.20 is: 11,434,021.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,092,128.70 : 42,140,999.70 = 7,622,173.20 : x
  2. Step 2: Convert to fraction form
    28,092,128.70/42,140,999.70 = 7,622,173.20/x
  3. Step 3: Cross multiply
    28,092,128.70x = 42,140,999.70 × 7,622,173.20
  4. Step 4: Simplify right side
    28,092,128.70x = 321,205,998,534,548.06
  5. Step 5: Solve for x
    x = 321,205,998,534,548.06/28,092,128.70
  6. Step 6: Final answer
    x = 11,434,021.32

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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.