Home / 217,831,570.17-326,816,428.31-77,769,022.67

Finding the Fourth Proportional to 217,831,570.17, 326,816,428.31 and 77,769,022.67

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Solution

The fourth proportional to 217,831,570.17, 326,816,428.31 and 77,769,022.67 is: 116,678,194.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,831,570.17 : 326,816,428.31 = 77,769,022.67 : x
  2. Step 2: Convert to fraction form
    217,831,570.17/326,816,428.31 = 77,769,022.67/x
  3. Step 3: Cross multiply
    217,831,570.17x = 326,816,428.31 × 77,769,022.67
  4. Step 4: Simplify right side
    217,831,570.17x = 25,416,194,220,634,876
  5. Step 5: Solve for x
    x = 25,416,194,220,634,876/217,831,570.17
  6. Step 6: Final answer
    x = 116,678,194.08

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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.