Home / 213,718,200,173.79-320,631,562,435.03-98,934,619,731.85

Finding the Fourth Proportional to 213,718,200,173.79, 320,631,562,435.03 and 98,934,619,731.85

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Solution

The fourth proportional to 213,718,200,173.79, 320,631,562,435.03 and 98,934,619,731.85 is: 148,427,048,691.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,718,200,173.79 : 320,631,562,435.03 = 98,934,619,731.85 : x
  2. Step 2: Convert to fraction form
    213,718,200,173.79/320,631,562,435.03 = 98,934,619,731.85/x
  3. Step 3: Cross multiply
    213,718,200,173.79x = 320,631,562,435.03 × 98,934,619,731.85
  4. Step 4: Simplify right side
    213,718,200,173.79x = 31,721,561,703,538,619,318,272
  5. Step 5: Solve for x
    x = 31,721,561,703,538,619,318,272/213,718,200,173.79
  6. Step 6: Final answer
    x = 148,427,048,691.89

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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.