Home / 91,886,214.75-137,850,762.92-30,470,880.75

Finding the Fourth Proportional to 91,886,214.75, 137,850,762.92 and 30,470,880.75

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Solution

The fourth proportional to 91,886,214.75, 137,850,762.92 and 30,470,880.75 is: 45,713,431.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,886,214.75 : 137,850,762.92 = 30,470,880.75 : x
  2. Step 2: Convert to fraction form
    91,886,214.75/137,850,762.92 = 30,470,880.75/x
  3. Step 3: Cross multiply
    91,886,214.75x = 137,850,762.92 × 30,470,880.75
  4. Step 4: Simplify right side
    91,886,214.75x = 4,200,434,158,079,487
  5. Step 5: Solve for x
    x = 4,200,434,158,079,487/91,886,214.75
  6. Step 6: Final answer
    x = 45,713,431.22

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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.