Home / 38,428,130.39-53,032,084.58-21,024,077.34

Finding the Fourth Proportional to 38,428,130.39, 53,032,084.58 and 21,024,077.34

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Solution

The fourth proportional to 38,428,130.39, 53,032,084.58 and 21,024,077.34 is: 29,013,918.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,428,130.39 : 53,032,084.58 = 21,024,077.34 : x
  2. Step 2: Convert to fraction form
    38,428,130.39/53,032,084.58 = 21,024,077.34/x
  3. Step 3: Cross multiply
    38,428,130.39x = 53,032,084.58 × 21,024,077.34
  4. Step 4: Simplify right side
    38,428,130.39x = 1,114,950,647,498,741.25
  5. Step 5: Solve for x
    x = 1,114,950,647,498,741.25/38,428,130.39
  6. Step 6: Final answer
    x = 29,013,918.61

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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.