Home / 30,660,662.60-42,301,029.80-19,653,481.73

Finding the Fourth Proportional to 30,660,662.60, 42,301,029.80 and 19,653,481.73

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Solution

The fourth proportional to 30,660,662.60, 42,301,029.80 and 19,653,481.73 is: 27,114,955.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,660,662.60 : 42,301,029.80 = 19,653,481.73 : x
  2. Step 2: Convert to fraction form
    30,660,662.60/42,301,029.80 = 19,653,481.73/x
  3. Step 3: Cross multiply
    30,660,662.60x = 42,301,029.80 × 19,653,481.73
  4. Step 4: Simplify right side
    30,660,662.60x = 831,362,516,024,713.12
  5. Step 5: Solve for x
    x = 831,362,516,024,713.12/30,660,662.60
  6. Step 6: Final answer
    x = 27,114,955.96

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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.