Home / 217,831,571.17-326,816,429.81-77,769,023.67

Finding the Fourth Proportional to 217,831,571.17, 326,816,429.81 and 77,769,023.67

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Solution

The fourth proportional to 217,831,571.17, 326,816,429.81 and 77,769,023.67 is: 116,678,195.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,831,571.17 : 326,816,429.81 = 77,769,023.67 : x
  2. Step 2: Convert to fraction form
    217,831,571.17/326,816,429.81 = 77,769,023.67/x
  3. Step 3: Cross multiply
    217,831,571.17x = 326,816,429.81 × 77,769,023.67
  4. Step 4: Simplify right side
    217,831,571.17x = 25,416,194,665,638,784
  5. Step 5: Solve for x
    x = 25,416,194,665,638,784/217,831,571.17
  6. Step 6: Final answer
    x = 116,678,195.59

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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.