Home / 81,413,945.13-122,020,867.66-37,635,485.88

Finding the Fourth Proportional to 81,413,945.13, 122,020,867.66 and 37,635,485.88

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Solution

The fourth proportional to 81,413,945.13, 122,020,867.66 and 37,635,485.88 is: 56,406,978.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,413,945.13 : 122,020,867.66 = 37,635,485.88 : x
  2. Step 2: Convert to fraction form
    81,413,945.13/122,020,867.66 = 37,635,485.88/x
  3. Step 3: Cross multiply
    81,413,945.13x = 122,020,867.66 × 37,635,485.88
  4. Step 4: Simplify right side
    81,413,945.13x = 4,592,314,641,883,279
  5. Step 5: Solve for x
    x = 4,592,314,641,883,279/81,413,945.13
  6. Step 6: Final answer
    x = 56,406,978.37

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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.