Home / 145,220,202.34-217,894,629.90-76,116,583.09

Finding the Fourth Proportional to 145,220,202.34, 217,894,629.90 and 76,116,583.09

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Solution

The fourth proportional to 145,220,202.34, 217,894,629.90 and 76,116,583.09 is: 114,208,591.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,220,202.34 : 217,894,629.90 = 76,116,583.09 : x
  2. Step 2: Convert to fraction form
    145,220,202.34/217,894,629.90 = 76,116,583.09/x
  3. Step 3: Cross multiply
    145,220,202.34x = 217,894,629.90 × 76,116,583.09
  4. Step 4: Simplify right side
    145,220,202.34x = 16,585,394,701,648,150
  5. Step 5: Solve for x
    x = 16,585,394,701,648,150/145,220,202.34
  6. Step 6: Final answer
    x = 114,208,591.05

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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.