Finding the Fourth Proportional to 7,926,584,843.80, 11,889,877,265.70 and 5,314,446,040.60
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Solution
The fourth proportional to 7,926,584,843.80, 11,889,877,265.70 and 5,314,446,040.60 is: 7,971,669,060.90
Step by Step Solution
- Step 1: Write the proportion equation
7,926,584,843.80 : 11,889,877,265.70 = 5,314,446,040.60 : x - Step 2: Convert to fraction form
7,926,584,843.80/11,889,877,265.70 = 5,314,446,040.60/x - Step 3: Cross multiply
7,926,584,843.80x = 11,889,877,265.70 × 5,314,446,040.60 - Step 4: Simplify right side
7,926,584,843.80x = 63,188,111,157,919,326,208 - Step 5: Solve for x
x = 63,188,111,157,919,326,208/7,926,584,843.80 - Step 6: Final answer
x = 7,971,669,060.90
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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.