Home / 219,831,964.20-329,621,975.10-66,455,029.80

Finding the Fourth Proportional to 219,831,964.20, 329,621,975.10 and 66,455,029.80

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Solution

The fourth proportional to 219,831,964.20, 329,621,975.10 and 66,455,029.80 is: 99,644,463.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,831,964.20 : 329,621,975.10 = 66,455,029.80 : x
  2. Step 2: Convert to fraction form
    219,831,964.20/329,621,975.10 = 66,455,029.80/x
  3. Step 3: Cross multiply
    219,831,964.20x = 329,621,975.10 × 66,455,029.80
  4. Step 4: Simplify right side
    219,831,964.20x = 21,905,038,178,005,360
  5. Step 5: Solve for x
    x = 21,905,038,178,005,360/219,831,964.20
  6. Step 6: Final answer
    x = 99,644,463.71

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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.