Finding the Fourth Proportional to 440,933,371.42, 608,178,257.90 and 290,177,995.34
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Solution
The fourth proportional to 440,933,371.42, 608,178,257.90 and 290,177,995.34 is: 400,241,757.88
Step by Step Solution
- Step 1: Write the proportion equation
440,933,371.42 : 608,178,257.90 = 290,177,995.34 : x - Step 2: Convert to fraction form
440,933,371.42/608,178,257.90 = 290,177,995.34/x - Step 3: Cross multiply
440,933,371.42x = 608,178,257.90 × 290,177,995.34 - Step 4: Simplify right side
440,933,371.42x = 176,479,947,686,795,488 - Step 5: Solve for x
x = 176,479,947,686,795,488/440,933,371.42 - Step 6: Final answer
x = 400,241,757.88
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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.