Finding the Fourth Proportional to 492,276,496.23, 679,550,739.98 and 306,729,185.49
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Solution
The fourth proportional to 492,276,496.23, 679,550,739.98 and 306,729,185.49 is: 423,416,609.50
Step by Step Solution
- Step 1: Write the proportion equation
492,276,496.23 : 679,550,739.98 = 306,729,185.49 : x - Step 2: Convert to fraction form
492,276,496.23/679,550,739.98 = 306,729,185.49/x - Step 3: Cross multiply
492,276,496.23x = 679,550,739.98 × 306,729,185.49 - Step 4: Simplify right side
492,276,496.23x = 208,438,044,971,658,560 - Step 5: Solve for x
x = 208,438,044,971,658,560/492,276,496.23 - Step 6: Final answer
x = 423,416,609.50
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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.