Home / 38,668,976.64-53,364,558.24-21,266,667.72

Finding the Fourth Proportional to 38,668,976.64, 53,364,558.24 and 21,266,667.72

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Solution

The fourth proportional to 38,668,976.64, 53,364,558.24 and 21,266,667.72 is: 29,348,755.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,668,976.64 : 53,364,558.24 = 21,266,667.72 : x
  2. Step 2: Convert to fraction form
    38,668,976.64/53,364,558.24 = 21,266,667.72/x
  3. Step 3: Cross multiply
    38,668,976.64x = 53,364,558.24 × 21,266,667.72
  4. Step 4: Simplify right side
    38,668,976.64x = 1,134,886,328,114,668
  5. Step 5: Solve for x
    x = 1,134,886,328,114,668/38,668,976.64
  6. Step 6: Final answer
    x = 29,348,755.17

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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.