Finding the Fourth Proportional to 1,305,558,152.80, 1,801,714,469.18 and 710,865,701.08
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Solution
The fourth proportional to 1,305,558,152.80, 1,801,714,469.18 and 710,865,701.08 is: 981,018,743.99
Step by Step Solution
- Step 1: Write the proportion equation
1,305,558,152.80 : 1,801,714,469.18 = 710,865,701.08 : x - Step 2: Convert to fraction form
1,305,558,152.80/1,801,714,469.18 = 710,865,701.08/x - Step 3: Cross multiply
1,305,558,152.80x = 1,801,714,469.18 × 710,865,701.08 - Step 4: Simplify right side
1,305,558,152.80x = 1,280,777,019,267,057,920 - Step 5: Solve for x
x = 1,280,777,019,267,057,920/1,305,558,152.80 - Step 6: Final answer
x = 981,018,743.99
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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.