Home / 420,616,330.96-630,360,521.60-327,355,908.92

Finding the Fourth Proportional to 420,616,330.96, 630,360,521.60 and 327,355,908.92

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Solution

The fourth proportional to 420,616,330.96, 630,360,521.60 and 327,355,908.92 is: 490,594,934.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,616,330.96 : 630,360,521.60 = 327,355,908.92 : x
  2. Step 2: Convert to fraction form
    420,616,330.96/630,360,521.60 = 327,355,908.92/x
  3. Step 3: Cross multiply
    420,616,330.96x = 630,360,521.60 × 327,355,908.92
  4. Step 4: Simplify right side
    420,616,330.96x = 206,352,241,495,653,312
  5. Step 5: Solve for x
    x = 206,352,241,495,653,312/420,616,330.96
  6. Step 6: Final answer
    x = 490,594,934.88

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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.