Home / 51,221,101.41-76,831,783.34-20,928,964.41

Finding the Fourth Proportional to 51,221,101.41, 76,831,783.34 and 20,928,964.41

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Solution

The fourth proportional to 51,221,101.41, 76,831,783.34 and 20,928,964.41 is: 31,393,500.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,221,101.41 : 76,831,783.34 = 20,928,964.41 : x
  2. Step 2: Convert to fraction form
    51,221,101.41/76,831,783.34 = 20,928,964.41/x
  3. Step 3: Cross multiply
    51,221,101.41x = 76,831,783.34 × 20,928,964.41
  4. Step 4: Simplify right side
    51,221,101.41x = 1,608,009,658,975,046
  5. Step 5: Solve for x
    x = 1,608,009,658,975,046/51,221,101.41
  6. Step 6: Final answer
    x = 31,393,500.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.