Home / 85,322,416.90-117,711,432.12-49,552,768.37

Finding the Fourth Proportional to 85,322,416.90, 117,711,432.12 and 49,552,768.37

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Solution

The fourth proportional to 85,322,416.90, 117,711,432.12 and 49,552,768.37 is: 68,363,362.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,322,416.90 : 117,711,432.12 = 49,552,768.37 : x
  2. Step 2: Convert to fraction form
    85,322,416.90/117,711,432.12 = 49,552,768.37/x
  3. Step 3: Cross multiply
    85,322,416.90x = 117,711,432.12 × 49,552,768.37
  4. Step 4: Simplify right side
    85,322,416.90x = 5,832,927,330,457,741
  5. Step 5: Solve for x
    x = 5,832,927,330,457,741/85,322,416.90
  6. Step 6: Final answer
    x = 68,363,362.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.