Finding the Fourth Proportional to 7,926,584,850.80, 11,889,877,276.20 and 5,314,446,047.60
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Solution
The fourth proportional to 7,926,584,850.80, 11,889,877,276.20 and 5,314,446,047.60 is: 7,971,669,071.40
Step by Step Solution
- Step 1: Write the proportion equation
7,926,584,850.80 : 11,889,877,276.20 = 5,314,446,047.60 : x - Step 2: Convert to fraction form
7,926,584,850.80/11,889,877,276.20 = 5,314,446,047.60/x - Step 3: Cross multiply
7,926,584,850.80x = 11,889,877,276.20 × 5,314,446,047.60 - Step 4: Simplify right side
7,926,584,850.80x = 63,188,111,296,950,149,120 - Step 5: Solve for x
x = 63,188,111,296,950,149,120/7,926,584,850.80 - Step 6: Final answer
x = 7,971,669,071.40
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1.5x scale
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.