Home / 38,523,785.41-53,162,811.03-21,119,757.40

Finding the Fourth Proportional to 38,523,785.41, 53,162,811.03 and 21,119,757.40

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Solution

The fourth proportional to 38,523,785.41, 53,162,811.03 and 21,119,757.40 is: 29,145,258.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,523,785.41 : 53,162,811.03 = 21,119,757.40 : x
  2. Step 2: Convert to fraction form
    38,523,785.41/53,162,811.03 = 21,119,757.40/x
  3. Step 3: Cross multiply
    38,523,785.41x = 53,162,811.03 × 21,119,757.40
  4. Step 4: Simplify right side
    38,523,785.41x = 1,122,785,671,655,644.12
  5. Step 5: Solve for x
    x = 1,122,785,671,655,644.12/38,523,785.41
  6. Step 6: Final answer
    x = 29,145,258.18

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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.