Home / 738,653,670.42-1,108,285,723.35-323,915,889.30

Finding the Fourth Proportional to 738,653,670.42, 1,108,285,723.35 and 323,915,889.30

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Solution

The fourth proportional to 738,653,670.42, 1,108,285,723.35 and 323,915,889.30 is: 486,007,678.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,653,670.42 : 1,108,285,723.35 = 323,915,889.30 : x
  2. Step 2: Convert to fraction form
    738,653,670.42/1,108,285,723.35 = 323,915,889.30/x
  3. Step 3: Cross multiply
    738,653,670.42x = 1,108,285,723.35 × 323,915,889.30
  4. Step 4: Simplify right side
    738,653,670.42x = 358,991,355,677,409,024
  5. Step 5: Solve for x
    x = 358,991,355,677,409,024/738,653,670.42
  6. Step 6: Final answer
    x = 486,007,678.64

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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.