Home / 18,947,682-26,146,211.94-11,211,368.76

Finding the Fourth Proportional to 18,947,682, 26,146,211.94 and 11,211,368.76

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Solution

The fourth proportional to 18,947,682, 26,146,211.94 and 11,211,368.76 is: 15,470,748.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947,682 : 26,146,211.94 = 11,211,368.76 : x
  2. Step 2: Convert to fraction form
    18,947,682/26,146,211.94 = 11,211,368.76/x
  3. Step 3: Cross multiply
    18,947,682x = 26,146,211.94 × 11,211,368.76
  4. Step 4: Simplify right side
    18,947,682x = 293,134,823,736,455
  5. Step 5: Solve for x
    x = 293,134,823,736,455/18,947,682
  6. Step 6: Final answer
    x = 15,470,748.55

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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.