Home / 39,139,636.56-54,011,218.69-21,737,102.78

Finding the Fourth Proportional to 39,139,636.56, 54,011,218.69 and 21,737,102.78

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Solution

The fourth proportional to 39,139,636.56, 54,011,218.69 and 21,737,102.78 is: 29,996,380.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139,636.56 : 54,011,218.69 = 21,737,102.78 : x
  2. Step 2: Convert to fraction form
    39,139,636.56/54,011,218.69 = 21,737,102.78/x
  3. Step 3: Cross multiply
    39,139,636.56x = 54,011,218.69 × 21,737,102.78
  4. Step 4: Simplify right side
    39,139,636.56x = 1,174,047,411,673,702.25
  5. Step 5: Solve for x
    x = 1,174,047,411,673,702.25/39,139,636.56
  6. Step 6: Final answer
    x = 29,996,380.01

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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.