Home / 420,616,257.59-630,360,411.55-327,355,835.48

Finding the Fourth Proportional to 420,616,257.59, 630,360,411.55 and 327,355,835.48

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Solution

The fourth proportional to 420,616,257.59, 630,360,411.55 and 327,355,835.48 is: 490,594,824.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,616,257.59 : 630,360,411.55 = 327,355,835.48 : x
  2. Step 2: Convert to fraction form
    420,616,257.59/630,360,411.55 = 327,355,835.48/x
  3. Step 3: Cross multiply
    420,616,257.59x = 630,360,411.55 × 327,355,835.48
  4. Step 4: Simplify right side
    420,616,257.59x = 206,352,159,172,496,704
  5. Step 5: Solve for x
    x = 206,352,159,172,496,704/420,616,257.59
  6. Step 6: Final answer
    x = 490,594,824.74

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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.