Finding the Fourth Proportional to 285,877,072.56, 428,606,551.08 and 91,677,946.08
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Solution
The fourth proportional to 285,877,072.56, 428,606,551.08 and 91,677,946.08 is: 137,449,876.37
Step by Step Solution
- Step 1: Write the proportion equation
285,877,072.56 : 428,606,551.08 = 91,677,946.08 : x - Step 2: Convert to fraction form
285,877,072.56/428,606,551.08 = 91,677,946.08/x - Step 3: Cross multiply
285,877,072.56x = 428,606,551.08 × 91,677,946.08 - Step 4: Simplify right side
285,877,072.56x = 39,293,768,279,447,000 - Step 5: Solve for x
x = 39,293,768,279,447,000/285,877,072.56 - Step 6: Final answer
x = 137,449,876.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.