Home / 420,616,013.10-630,360,057.87-327,355,601.50

Finding the Fourth Proportional to 420,616,013.10, 630,360,057.87 and 327,355,601.50

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Solution

The fourth proportional to 420,616,013.10, 630,360,057.87 and 327,355,601.50 is: 490,594,483.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,616,013.10 : 630,360,057.87 = 327,355,601.50 : x
  2. Step 2: Convert to fraction form
    420,616,013.10/630,360,057.87 = 327,355,601.50/x
  3. Step 3: Cross multiply
    420,616,013.10x = 630,360,057.87 × 327,355,601.50
  4. Step 4: Simplify right side
    420,616,013.10x = 206,351,895,903,275,232
  5. Step 5: Solve for x
    x = 206,351,895,903,275,232/420,616,013.10
  6. Step 6: Final answer
    x = 490,594,483.98

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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.