Home / 39,975,914.06-55,166,779.86-21,641,199.56

Finding the Fourth Proportional to 39,975,914.06, 55,166,779.86 and 21,641,199.56

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Solution

The fourth proportional to 39,975,914.06, 55,166,779.86 and 21,641,199.56 is: 29,864,865.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,975,914.06 : 55,166,779.86 = 21,641,199.56 : x
  2. Step 2: Convert to fraction form
    39,975,914.06/55,166,779.86 = 21,641,199.56/x
  3. Step 3: Cross multiply
    39,975,914.06x = 55,166,779.86 × 21,641,199.56
  4. Step 4: Simplify right side
    39,975,914.06x = 1,193,875,292,032,848.75
  5. Step 5: Solve for x
    x = 1,193,875,292,032,848.75/39,975,914.06
  6. Step 6: Final answer
    x = 29,864,865.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.