Finding the Fourth Proportional to 13,495,197,639.23, 18,614,405,394.54 and 8,678,651,983.53
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Solution
The fourth proportional to 13,495,197,639.23, 18,614,405,394.54 and 8,678,651,983.53 is: 11,970,772,908.88
Step by Step Solution
- Step 1: Write the proportion equation
13,495,197,639.23 : 18,614,405,394.54 = 8,678,651,983.53 : x - Step 2: Convert to fraction form
13,495,197,639.23/18,614,405,394.54 = 8,678,651,983.53/x - Step 3: Cross multiply
13,495,197,639.23x = 18,614,405,394.54 × 8,678,651,983.53 - Step 4: Simplify right side
13,495,197,639.23x = 161,547,946,299,556,134,912 - Step 5: Solve for x
x = 161,547,946,299,556,134,912/13,495,197,639.23 - Step 6: Final answer
x = 11,970,772,908.88
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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.