Finding the Fourth Proportional to 1,235,292,514.40, 1,852,938,771.60 and 417,393,005.60
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Solution
The fourth proportional to 1,235,292,514.40, 1,852,938,771.60 and 417,393,005.60 is: 626,089,508.40
Step by Step Solution
- Step 1: Write the proportion equation
1,235,292,514.40 : 1,852,938,771.60 = 417,393,005.60 : x - Step 2: Convert to fraction form
1,235,292,514.40/1,852,938,771.60 = 417,393,005.60/x - Step 3: Cross multiply
1,235,292,514.40x = 1,852,938,771.60 × 417,393,005.60 - Step 4: Simplify right side
1,235,292,514.40x = 773,403,683,070,895,872 - Step 5: Solve for x
x = 773,403,683,070,895,872/1,235,292,514.40 - Step 6: Final answer
x = 626,089,508.40
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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.