Home / 18,947,683-26,146,213.32-11,211,369.76

Finding the Fourth Proportional to 18,947,683, 26,146,213.32 and 11,211,369.76

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Solution

The fourth proportional to 18,947,683, 26,146,213.32 and 11,211,369.76 is: 15,470,749.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947,683 : 26,146,213.32 = 11,211,369.76 : x
  2. Step 2: Convert to fraction form
    18,947,683/26,146,213.32 = 11,211,369.76/x
  3. Step 3: Cross multiply
    18,947,683x = 26,146,213.32 × 11,211,369.76
  4. Step 4: Simplify right side
    18,947,683x = 293,134,865,354,357.19
  5. Step 5: Solve for x
    x = 293,134,865,354,357.19/18,947,683
  6. Step 6: Final answer
    x = 15,470,749.93

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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.