Home / 18,858,528,047.55-28,287,792,071.33-7,813,373,231.55

Finding the Fourth Proportional to 18,858,528,047.55, 28,287,792,071.33 and 7,813,373,231.55

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Solution

The fourth proportional to 18,858,528,047.55, 28,287,792,071.33 and 7,813,373,231.55 is: 11,720,059,847.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,858,528,047.55 : 28,287,792,071.33 = 7,813,373,231.55 : x
  2. Step 2: Convert to fraction form
    18,858,528,047.55/28,287,792,071.33 = 7,813,373,231.55/x
  3. Step 3: Cross multiply
    18,858,528,047.55x = 28,287,792,071.33 × 7,813,373,231.55
  4. Step 4: Simplify right side
    18,858,528,047.55x = 221,023,077,349,743,099,904
  5. Step 5: Solve for x
    x = 221,023,077,349,743,099,904/18,858,528,047.55
  6. Step 6: Final answer
    x = 11,720,059,847.33

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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.