Finding the Fourth Proportional to 995,482,665.72, 1,373,382,927.18 and 623,557,207.80
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Solution
The fourth proportional to 995,482,665.72, 1,373,382,927.18 and 623,557,207.80 is: 860,268,945.71
Step by Step Solution
- Step 1: Write the proportion equation
995,482,665.72 : 1,373,382,927.18 = 623,557,207.80 : x - Step 2: Convert to fraction form
995,482,665.72/1,373,382,927.18 = 623,557,207.80/x - Step 3: Cross multiply
995,482,665.72x = 1,373,382,927.18 × 623,557,207.80 - Step 4: Simplify right side
995,482,665.72x = 856,382,823,312,551,552 - Step 5: Solve for x
x = 856,382,823,312,551,552/995,482,665.72 - Step 6: Final answer
x = 860,268,945.71
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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.