Home / 199,334,430.80-298,942,663.80-78,096,107.60

Finding the Fourth Proportional to 199,334,430.80, 298,942,663.80 and 78,096,107.60

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Solution

The fourth proportional to 199,334,430.80, 298,942,663.80 and 78,096,107.60 is: 117,121,053.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,334,430.80 : 298,942,663.80 = 78,096,107.60 : x
  2. Step 2: Convert to fraction form
    199,334,430.80/298,942,663.80 = 78,096,107.60/x
  3. Step 3: Cross multiply
    199,334,430.80x = 298,942,663.80 × 78,096,107.60
  4. Step 4: Simplify right side
    199,334,430.80x = 23,346,258,438,355,424
  5. Step 5: Solve for x
    x = 23,346,258,438,355,424/199,334,430.80
  6. Step 6: Final answer
    x = 117,121,053.02

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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.