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Finding the Fourth Proportional to 559,040,012.80, 838,560,019.20 and 559,040,012.80

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Solution

The fourth proportional to 559,040,012.80, 838,560,019.20 and 559,040,012.80 is: 838,560,019.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,040,012.80 : 838,560,019.20 = 559,040,012.80 : x
  2. Step 2: Convert to fraction form
    559,040,012.80/838,560,019.20 = 559,040,012.80/x
  3. Step 3: Cross multiply
    559,040,012.80x = 838,560,019.20 × 559,040,012.80
  4. Step 4: Simplify right side
    559,040,012.80x = 468,788,603,867,136,256
  5. Step 5: Solve for x
    x = 468,788,603,867,136,256/559,040,012.80
  6. Step 6: Final answer
    x = 838,560,019.20

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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.