Finding the Fourth Proportional to 492,276,825.98, 679,551,195.04 and 306,729,515.24
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Solution
The fourth proportional to 492,276,825.98, 679,551,195.04 and 306,729,515.24 is: 423,417,064.62
Step by Step Solution
- Step 1: Write the proportion equation
492,276,825.98 : 679,551,195.04 = 306,729,515.24 : x - Step 2: Convert to fraction form
492,276,825.98/679,551,195.04 = 306,729,515.24/x - Step 3: Cross multiply
492,276,825.98x = 679,551,195.04 × 306,729,515.24 - Step 4: Simplify right side
492,276,825.98x = 208,438,408,635,381,888 - Step 5: Solve for x
x = 208,438,408,635,381,888/492,276,825.98 - Step 6: Final answer
x = 423,417,064.62
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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.