Home / 485,706,367.43-728,610,581.14-158,207,413.67

Finding the Fourth Proportional to 485,706,367.43, 728,610,581.14 and 158,207,413.67

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Solution

The fourth proportional to 485,706,367.43, 728,610,581.14 and 158,207,413.67 is: 237,327,742.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,706,367.43 : 728,610,581.14 = 158,207,413.67 : x
  2. Step 2: Convert to fraction form
    485,706,367.43/728,610,581.14 = 158,207,413.67/x
  3. Step 3: Cross multiply
    485,706,367.43x = 728,610,581.14 × 158,207,413.67
  4. Step 4: Simplify right side
    485,706,367.43x = 115,271,595,610,320,976
  5. Step 5: Solve for x
    x = 115,271,595,610,320,976/485,706,367.43
  6. Step 6: Final answer
    x = 237,327,742.32

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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.