Home / 420,616,683.11-630,361,050-327,356,261.06

Finding the Fourth Proportional to 420,616,683.11, 630,361,050 and 327,356,261.06

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Solution

The fourth proportional to 420,616,683.11, 630,361,050 and 327,356,261.06 is: 490,595,463.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,616,683.11 : 630,361,050 = 327,356,261.06 : x
  2. Step 2: Convert to fraction form
    420,616,683.11/630,361,050 = 327,356,261.06/x
  3. Step 3: Cross multiply
    420,616,683.11x = 630,361,050 × 327,356,261.06
  4. Step 4: Simplify right side
    420,616,683.11x = 206,352,636,445,855,712
  5. Step 5: Solve for x
    x = 206,352,636,445,855,712/420,616,683.11
  6. Step 6: Final answer
    x = 490,595,463.12

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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.