Home / 308,471,780.52-459,501,586.61-291,763,939.78

Finding the Fourth Proportional to 308,471,780.52, 459,501,586.61 and 291,763,939.78

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Solution

The fourth proportional to 308,471,780.52, 459,501,586.61 and 291,763,939.78 is: 434,613,477.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,471,780.52 : 459,501,586.61 = 291,763,939.78 : x
  2. Step 2: Convert to fraction form
    308,471,780.52/459,501,586.61 = 291,763,939.78/x
  3. Step 3: Cross multiply
    308,471,780.52x = 459,501,586.61 × 291,763,939.78
  4. Step 4: Simplify right side
    308,471,780.52x = 134,065,993,244,494,480
  5. Step 5: Solve for x
    x = 134,065,993,244,494,480/308,471,780.52
  6. Step 6: Final answer
    x = 434,613,477.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.