Home / 11,921,931,378.40-17,882,897,067.60-11,840,302,040.80

Finding the Fourth Proportional to 11,921,931,378.40, 17,882,897,067.60 and 11,840,302,040.80

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Solution

The fourth proportional to 11,921,931,378.40, 17,882,897,067.60 and 11,840,302,040.80 is: 17,760,453,061.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,921,931,378.40 : 17,882,897,067.60 = 11,840,302,040.80 : x
  2. Step 2: Convert to fraction form
    11,921,931,378.40/17,882,897,067.60 = 11,840,302,040.80/x
  3. Step 3: Cross multiply
    11,921,931,378.40x = 17,882,897,067.60 × 11,840,302,040.80
  4. Step 4: Simplify right side
    11,921,931,378.40x = 211,738,902,644,920,582,144
  5. Step 5: Solve for x
    x = 211,738,902,644,920,582,144/11,921,931,378.40
  6. Step 6: Final answer
    x = 17,760,453,061.20

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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.