Home / 18,724,234,918.72-28,091,035,391.45-5,459,493,199.86

Finding the Fourth Proportional to 18,724,234,918.72, 28,091,035,391.45 and 5,459,493,199.86

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Solution

The fourth proportional to 18,724,234,918.72, 28,091,035,391.45 and 5,459,493,199.86 is: 8,190,605,243.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,724,234,918.72 : 28,091,035,391.45 = 5,459,493,199.86 : x
  2. Step 2: Convert to fraction form
    18,724,234,918.72/28,091,035,391.45 = 5,459,493,199.86/x
  3. Step 3: Cross multiply
    18,724,234,918.72x = 28,091,035,391.45 × 5,459,493,199.86
  4. Step 4: Simplify right side
    18,724,234,918.72x = 153,362,816,696,647,876,608
  5. Step 5: Solve for x
    x = 153,362,816,696,647,876,608/18,724,234,918.72
  6. Step 6: Final answer
    x = 8,190,605,243.01

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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.