Finding the Fourth Proportional to 2,272,208,808.80, 3,408,313,213.20 and 891,312,514.40
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Solution
The fourth proportional to 2,272,208,808.80, 3,408,313,213.20 and 891,312,514.40 is: 1,336,968,771.60
Step by Step Solution
- Step 1: Write the proportion equation
2,272,208,808.80 : 3,408,313,213.20 = 891,312,514.40 : x - Step 2: Convert to fraction form
2,272,208,808.80/3,408,313,213.20 = 891,312,514.40/x - Step 3: Cross multiply
2,272,208,808.80x = 3,408,313,213.20 × 891,312,514.40 - Step 4: Simplify right side
2,272,208,808.80x = 3,037,872,219,920,034,816 - Step 5: Solve for x
x = 3,037,872,219,920,034,816/2,272,208,808.80 - Step 6: Final answer
x = 1,336,968,771.60
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.