Home / 420,616,303.49-630,360,480.24-327,355,881.45

Finding the Fourth Proportional to 420,616,303.49, 630,360,480.24 and 327,355,881.45

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Solution

The fourth proportional to 420,616,303.49, 630,360,480.24 and 327,355,881.45 is: 490,594,893.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,616,303.49 : 630,360,480.24 = 327,355,881.45 : x
  2. Step 2: Convert to fraction form
    420,616,303.49/630,360,480.24 = 327,355,881.45/x
  3. Step 3: Cross multiply
    420,616,303.49x = 630,360,480.24 × 327,355,881.45
  4. Step 4: Simplify right side
    420,616,303.49x = 206,352,210,640,210,496
  5. Step 5: Solve for x
    x = 206,352,210,640,210,496/420,616,303.49
  6. Step 6: Final answer
    x = 490,594,893.57

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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.