Home / 39,142,309.02-54,016,512.21-21,738,653.72

Finding the Fourth Proportional to 39,142,309.02, 54,016,512.21 and 21,738,653.72

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Solution

The fourth proportional to 39,142,309.02, 54,016,512.21 and 21,738,653.72 is: 29,999,411.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,142,309.02 : 54,016,512.21 = 21,738,653.72 : x
  2. Step 2: Convert to fraction form
    39,142,309.02/54,016,512.21 = 21,738,653.72/x
  3. Step 3: Cross multiply
    39,142,309.02x = 54,016,512.21 × 21,738,653.72
  4. Step 4: Simplify right side
    39,142,309.02x = 1,174,246,254,027,821.25
  5. Step 5: Solve for x
    x = 1,174,246,254,027,821.25/39,142,309.02
  6. Step 6: Final answer
    x = 29,999,411.98

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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.