Home / 12,632,957,835.95-18,919,355,121.03-7,309,851,743.35

Finding the Fourth Proportional to 12,632,957,835.95, 18,919,355,121.03 and 7,309,851,743.35

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Solution

The fourth proportional to 12,632,957,835.95, 18,919,355,121.03 and 7,309,851,743.35 is: 10,947,371,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,632,957,835.95 : 18,919,355,121.03 = 7,309,851,743.35 : x
  2. Step 2: Convert to fraction form
    12,632,957,835.95/18,919,355,121.03 = 7,309,851,743.35/x
  3. Step 3: Cross multiply
    12,632,957,835.95x = 18,919,355,121.03 × 7,309,851,743.35
  4. Step 4: Simplify right side
    12,632,957,835.95x = 138,297,681,014,519,676,928
  5. Step 5: Solve for x
    x = 138,297,681,014,519,676,928/12,632,957,835.95
  6. Step 6: Final answer
    x = 10,947,371,376.55

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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.