Home / 39,955,957.08-55,139,366.08-21,621,242.58

Finding the Fourth Proportional to 39,955,957.08, 55,139,366.08 and 21,621,242.58

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Solution

The fourth proportional to 39,955,957.08, 55,139,366.08 and 21,621,242.58 is: 29,837,393.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,955,957.08 : 55,139,366.08 = 21,621,242.58 : x
  2. Step 2: Convert to fraction form
    39,955,957.08/55,139,366.08 = 21,621,242.58/x
  3. Step 3: Cross multiply
    39,955,957.08x = 55,139,366.08 × 21,621,242.58
  4. Step 4: Simplify right side
    39,955,957.08x = 1,192,181,609,447,406.75
  5. Step 5: Solve for x
    x = 1,192,181,609,447,406.75/39,955,957.08
  6. Step 6: Final answer
    x = 29,837,393.39

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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.