Home / 38,512,542.53-53,147,198.81-21,108,833.93

Finding the Fourth Proportional to 38,512,542.53, 53,147,198.81 and 21,108,833.93

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Solution

The fourth proportional to 38,512,542.53, 53,147,198.81 and 21,108,833.93 is: 29,130,130.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,512,542.53 : 53,147,198.81 = 21,108,833.93 : x
  2. Step 2: Convert to fraction form
    38,512,542.53/53,147,198.81 = 21,108,833.93/x
  3. Step 3: Cross multiply
    38,512,542.53x = 53,147,198.81 × 21,108,833.93
  4. Step 4: Simplify right side
    38,512,542.53x = 1,121,875,393,710,623.75
  5. Step 5: Solve for x
    x = 1,121,875,393,710,623.75/38,512,542.53
  6. Step 6: Final answer
    x = 29,130,130.60

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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.