Home / 18,931,717.96-28,397,575.20-4,554,785.78

Finding the Fourth Proportional to 18,931,717.96, 28,397,575.20 and 4,554,785.78

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Solution

The fourth proportional to 18,931,717.96, 28,397,575.20 and 4,554,785.78 is: 6,832,178.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,931,717.96 : 28,397,575.20 = 4,554,785.78 : x
  2. Step 2: Convert to fraction form
    18,931,717.96/28,397,575.20 = 4,554,785.78/x
  3. Step 3: Cross multiply
    18,931,717.96x = 28,397,575.20 × 4,554,785.78
  4. Step 4: Simplify right side
    18,931,717.96x = 129,344,871,707,440.66
  5. Step 5: Solve for x
    x = 129,344,871,707,440.66/18,931,717.96
  6. Step 6: Final answer
    x = 6,832,178.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.