Finding the Fourth Proportional to 15,316,567,640.12, 21,136,864,226.28 and 8,276,037,272.12
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Solution
The fourth proportional to 15,316,567,640.12, 21,136,864,226.28 and 8,276,037,272.12 is: 11,420,931,912.59
Step by Step Solution
- Step 1: Write the proportion equation
15,316,567,640.12 : 21,136,864,226.28 = 8,276,037,272.12 : x - Step 2: Convert to fraction form
15,316,567,640.12/21,136,864,226.28 = 8,276,037,272.12/x - Step 3: Cross multiply
15,316,567,640.12x = 21,136,864,226.28 × 8,276,037,272.12 - Step 4: Simplify right side
15,316,567,640.12x = 174,929,476,152,433,147,904 - Step 5: Solve for x
x = 174,929,476,152,433,147,904/15,316,567,640.12 - Step 6: Final answer
x = 11,420,931,912.59
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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.