Home / 108,243,698.40-149,398,004.72-64,215,135.92

Finding the Fourth Proportional to 108,243,698.40, 149,398,004.72 and 64,215,135.92

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Solution

The fourth proportional to 108,243,698.40, 149,398,004.72 and 64,215,135.92 is: 88,629,761.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,243,698.40 : 149,398,004.72 = 64,215,135.92 : x
  2. Step 2: Convert to fraction form
    108,243,698.40/149,398,004.72 = 64,215,135.92/x
  3. Step 3: Cross multiply
    108,243,698.40x = 149,398,004.72 × 64,215,135.92
  4. Step 4: Simplify right side
    108,243,698.40x = 9,593,613,179,271,602
  5. Step 5: Solve for x
    x = 9,593,613,179,271,602/108,243,698.40
  6. Step 6: Final answer
    x = 88,629,761.56

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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.