Home / 667,825,191,040.15-921,548,186,458.20-374,793,519,931.65

Finding the Fourth Proportional to 667,825,191,040.15, 921,548,186,458.20 and 374,793,519,931.65

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Solution

The fourth proportional to 667,825,191,040.15, 921,548,186,458.20 and 374,793,519,931.65 is: 517,186,672,834.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,825,191,040.15 : 921,548,186,458.20 = 374,793,519,931.65 : x
  2. Step 2: Convert to fraction form
    667,825,191,040.15/921,548,186,458.20 = 374,793,519,931.65/x
  3. Step 3: Cross multiply
    667,825,191,040.15x = 921,548,186,458.20 × 374,793,519,931.65
  4. Step 4: Simplify right side
    667,825,191,040.15x = 345,390,288,589,297,308,139,520
  5. Step 5: Solve for x
    x = 345,390,288,589,297,308,139,520/667,825,191,040.15
  6. Step 6: Final answer
    x = 517,186,672,834.77

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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.