Home / 39,975,897.06-55,166,756.40-21,641,182.56

Finding the Fourth Proportional to 39,975,897.06, 55,166,756.40 and 21,641,182.56

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Solution

The fourth proportional to 39,975,897.06, 55,166,756.40 and 21,641,182.56 is: 29,864,841.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,975,897.06 : 55,166,756.40 = 21,641,182.56 : x
  2. Step 2: Convert to fraction form
    39,975,897.06/55,166,756.40 = 21,641,182.56/x
  3. Step 3: Cross multiply
    39,975,897.06x = 55,166,756.40 × 21,641,182.56
  4. Step 4: Simplify right side
    39,975,897.06x = 1,193,873,846,495,448.25
  5. Step 5: Solve for x
    x = 1,193,873,846,495,448.25/39,975,897.06
  6. Step 6: Final answer
    x = 29,864,841.92

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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.