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Finding the Fourth Proportional to 649,981,252.52, 896,975,867.09 and 352,623,494.69

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Solution

The fourth proportional to 649,981,252.52, 896,975,867.09 and 352,623,494.69 is: 486,621,365.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,981,252.52 : 896,975,867.09 = 352,623,494.69 : x
  2. Step 2: Convert to fraction form
    649,981,252.52/896,975,867.09 = 352,623,494.69/x
  3. Step 3: Cross multiply
    649,981,252.52x = 896,975,867.09 × 352,623,494.69
  4. Step 4: Simplify right side
    649,981,252.52x = 316,294,764,908,684,800
  5. Step 5: Solve for x
    x = 316,294,764,908,684,800/649,981,252.52
  6. Step 6: Final answer
    x = 486,621,365.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.