Home / 356,861,437.92-492,477,276-200,240,128.80

Finding the Fourth Proportional to 356,861,437.92, 492,477,276 and 200,240,128.80

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Solution

The fourth proportional to 356,861,437.92, 492,477,276 and 200,240,128.80 is: 276,336,142.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,861,437.92 : 492,477,276 = 200,240,128.80 : x
  2. Step 2: Convert to fraction form
    356,861,437.92/492,477,276 = 200,240,128.80/x
  3. Step 3: Cross multiply
    356,861,437.92x = 492,477,276 × 200,240,128.80
  4. Step 4: Simplify right side
    356,861,437.92x = 98,613,713,177,313,152
  5. Step 5: Solve for x
    x = 98,613,713,177,313,152/356,861,437.92
  6. Step 6: Final answer
    x = 276,336,142.54

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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.