Home / 649,981,246.38-896,975,858.58-352,623,488.55

Finding the Fourth Proportional to 649,981,246.38, 896,975,858.58 and 352,623,488.55

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Solution

The fourth proportional to 649,981,246.38, 896,975,858.58 and 352,623,488.55 is: 486,621,357.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,981,246.38 : 896,975,858.58 = 352,623,488.55 : x
  2. Step 2: Convert to fraction form
    649,981,246.38/896,975,858.58 = 352,623,488.55/x
  3. Step 3: Cross multiply
    649,981,246.38x = 896,975,858.58 × 352,623,488.55
  4. Step 4: Simplify right side
    649,981,246.38x = 316,294,756,394,247,424
  5. Step 5: Solve for x
    x = 316,294,756,394,247,424/649,981,246.38
  6. Step 6: Final answer
    x = 486,621,357.40

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Double scale
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1.5x scale

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.