Home / 30,864,908.80-42,568,999.68-19,852,923.52

Finding the Fourth Proportional to 30,864,908.80, 42,568,999.68 and 19,852,923.52

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Solution

The fourth proportional to 30,864,908.80, 42,568,999.68 and 19,852,923.52 is: 27,381,227.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,864,908.80 : 42,568,999.68 = 19,852,923.52 : x
  2. Step 2: Convert to fraction form
    30,864,908.80/42,568,999.68 = 19,852,923.52/x
  3. Step 3: Cross multiply
    30,864,908.80x = 42,568,999.68 × 19,852,923.52
  4. Step 4: Simplify right side
    30,864,908.80x = 845,119,094,969,944.50
  5. Step 5: Solve for x
    x = 845,119,094,969,944.50/30,864,908.80
  6. Step 6: Final answer
    x = 27,381,227.67

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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.