Finding the Fourth Proportional to 9,118,276,955.13, 12,583,350,707.64 and 5,253,676,707.36
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Solution
The fourth proportional to 9,118,276,955.13, 12,583,350,707.64 and 5,253,676,707.36 is: 7,250,147,899.50
Step by Step Solution
- Step 1: Write the proportion equation
9,118,276,955.13 : 12,583,350,707.64 = 5,253,676,707.36 : x - Step 2: Convert to fraction form
9,118,276,955.13/12,583,350,707.64 = 5,253,676,707.36/x - Step 3: Cross multiply
9,118,276,955.13x = 12,583,350,707.64 × 5,253,676,707.36 - Step 4: Simplify right side
9,118,276,955.13x = 66,108,856,513,270,235,136 - Step 5: Solve for x
x = 66,108,856,513,270,235,136/9,118,276,955.13 - Step 6: Final answer
x = 7,250,147,899.50
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1.5x scale
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.