Finding the Fourth Proportional to 1,026,310,480.80, 1,416,514,219.92 and 608,854,480.80
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Solution
The fourth proportional to 1,026,310,480.80, 1,416,514,219.92 and 608,854,480.80 is: 840,341,247.65
Step by Step Solution
- Step 1: Write the proportion equation
1,026,310,480.80 : 1,416,514,219.92 = 608,854,480.80 : x - Step 2: Convert to fraction form
1,026,310,480.80/1,416,514,219.92 = 608,854,480.80/x - Step 3: Cross multiply
1,026,310,480.80x = 1,416,514,219.92 × 608,854,480.80 - Step 4: Simplify right side
1,026,310,480.80x = 862,451,029,915,208,576 - Step 5: Solve for x
x = 862,451,029,915,208,576/1,026,310,480.80 - Step 6: Final answer
x = 840,341,247.65
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Double scale
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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.