Home / 30,818,568.61-42,509,146.44-19,819,224.64

Finding the Fourth Proportional to 30,818,568.61, 42,509,146.44 and 19,819,224.64

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Solution

The fourth proportional to 30,818,568.61, 42,509,146.44 and 19,819,224.64 is: 27,337,360.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,818,568.61 : 42,509,146.44 = 19,819,224.64 : x
  2. Step 2: Convert to fraction form
    30,818,568.61/42,509,146.44 = 19,819,224.64/x
  3. Step 3: Cross multiply
    30,818,568.61x = 42,509,146.44 × 19,819,224.64
  4. Step 4: Simplify right side
    30,818,568.61x = 842,498,322,549,016.25
  5. Step 5: Solve for x
    x = 842,498,322,549,016.25/30,818,568.61
  6. Step 6: Final answer
    x = 27,337,360.58

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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.