Home / 8,720,072,972.62-13,060,974,074.61-7,208,978,424.57

Finding the Fourth Proportional to 8,720,072,972.62, 13,060,974,074.61 and 7,208,978,424.57

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Solution

The fourth proportional to 8,720,072,972.62, 13,060,974,074.61 and 7,208,978,424.57 is: 10,797,648,208.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720,072,972.62 : 13,060,974,074.61 = 7,208,978,424.57 : x
  2. Step 2: Convert to fraction form
    8,720,072,972.62/13,060,974,074.61 = 7,208,978,424.57/x
  3. Step 3: Cross multiply
    8,720,072,972.62x = 13,060,974,074.61 × 7,208,978,424.57
  4. Step 4: Simplify right side
    8,720,072,972.62x = 94,156,280,307,731,611,648
  5. Step 5: Solve for x
    x = 94,156,280,307,731,611,648/8,720,072,972.62
  6. Step 6: Final answer
    x = 10,797,648,208.15

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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.