Home / 78,312,334.20-117,468,501.30-58,156,942.20

Finding the Fourth Proportional to 78,312,334.20, 117,468,501.30 and 58,156,942.20

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Solution

The fourth proportional to 78,312,334.20, 117,468,501.30 and 58,156,942.20 is: 87,235,413.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,312,334.20 : 117,468,501.30 = 58,156,942.20 : x
  2. Step 2: Convert to fraction form
    78,312,334.20/117,468,501.30 = 58,156,942.20/x
  3. Step 3: Cross multiply
    78,312,334.20x = 117,468,501.30 × 58,156,942.20
  4. Step 4: Simplify right side
    78,312,334.20x = 6,831,608,840,424,725
  5. Step 5: Solve for x
    x = 6,831,608,840,424,725/78,312,334.20
  6. Step 6: Final answer
    x = 87,235,413.30

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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.