Home / 13,631,397,942.40-20,447,096,913.60-12,162,069,865.60

Finding the Fourth Proportional to 13,631,397,942.40, 20,447,096,913.60 and 12,162,069,865.60

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Solution

The fourth proportional to 13,631,397,942.40, 20,447,096,913.60 and 12,162,069,865.60 is: 18,243,104,798.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631,397,942.40 : 20,447,096,913.60 = 12,162,069,865.60 : x
  2. Step 2: Convert to fraction form
    13,631,397,942.40/20,447,096,913.60 = 12,162,069,865.60/x
  3. Step 3: Cross multiply
    13,631,397,942.40x = 20,447,096,913.60 × 12,162,069,865.60
  4. Step 4: Simplify right side
    13,631,397,942.40x = 248,679,021,211,897,331,712
  5. Step 5: Solve for x
    x = 248,679,021,211,897,331,712/13,631,397,942.40
  6. Step 6: Final answer
    x = 18,243,104,798.40

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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.