Home / 38,311,930.94-52,869,726.92-20,908,400.71

Finding the Fourth Proportional to 38,311,930.94, 52,869,726.92 and 20,908,400.71

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Solution

The fourth proportional to 38,311,930.94, 52,869,726.92 and 20,908,400.71 is: 28,853,190.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,311,930.94 : 52,869,726.92 = 20,908,400.71 : x
  2. Step 2: Convert to fraction form
    38,311,930.94/52,869,726.92 = 20,908,400.71/x
  3. Step 3: Cross multiply
    38,311,930.94x = 52,869,726.92 × 20,908,400.71
  4. Step 4: Simplify right side
    38,311,930.94x = 1,105,421,435,871,634.25
  5. Step 5: Solve for x
    x = 1,105,421,435,871,634.25/38,311,930.94
  6. Step 6: Final answer
    x = 28,853,190.34

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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.