Home / 20,974,018.51-28,945,047.86-11,681,592.67

Finding the Fourth Proportional to 20,974,018.51, 28,945,047.86 and 11,681,592.67

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Solution

The fourth proportional to 20,974,018.51, 28,945,047.86 and 11,681,592.67 is: 16,121,100.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,974,018.51 : 28,945,047.86 = 11,681,592.67 : x
  2. Step 2: Convert to fraction form
    20,974,018.51/28,945,047.86 = 11,681,592.67/x
  3. Step 3: Cross multiply
    20,974,018.51x = 28,945,047.86 × 11,681,592.67
  4. Step 4: Simplify right side
    20,974,018.51x = 338,124,258,914,175.19
  5. Step 5: Solve for x
    x = 338,124,258,914,175.19/20,974,018.51
  6. Step 6: Final answer
    x = 16,121,100.43

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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.