Home / 40,503,505.05-55,894,835.25-21,918,645.77

Finding the Fourth Proportional to 40,503,505.05, 55,894,835.25 and 21,918,645.77

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Solution

The fourth proportional to 40,503,505.05, 55,894,835.25 and 21,918,645.77 is: 30,247,730.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,503,505.05 : 55,894,835.25 = 21,918,645.77 : x
  2. Step 2: Convert to fraction form
    40,503,505.05/55,894,835.25 = 21,918,645.77/x
  3. Step 3: Cross multiply
    40,503,505.05x = 55,894,835.25 × 21,918,645.77
  4. Step 4: Simplify right side
    40,503,505.05x = 1,225,139,093,937,785.25
  5. Step 5: Solve for x
    x = 1,225,139,093,937,785.25/40,503,505.05
  6. Step 6: Final answer
    x = 30,247,730.23

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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.