Home / 39,780,032.72-59,701,935.60-20,616,268.64

Finding the Fourth Proportional to 39,780,032.72, 59,701,935.60 and 20,616,268.64

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Solution

The fourth proportional to 39,780,032.72, 59,701,935.60 and 20,616,268.64 is: 30,940,928.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,780,032.72 : 59,701,935.60 = 20,616,268.64 : x
  2. Step 2: Convert to fraction form
    39,780,032.72/59,701,935.60 = 20,616,268.64/x
  3. Step 3: Cross multiply
    39,780,032.72x = 59,701,935.60 × 20,616,268.64
  4. Step 4: Simplify right side
    39,780,032.72x = 1,230,831,142,657,579.75
  5. Step 5: Solve for x
    x = 1,230,831,142,657,579.75/39,780,032.72
  6. Step 6: Final answer
    x = 30,940,928.36

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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.