Finding the Fourth Proportional to 1,609,632,001.30, 2,414,448,001.95 and 575,660,391.70
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Solution
The fourth proportional to 1,609,632,001.30, 2,414,448,001.95 and 575,660,391.70 is: 863,490,587.55
Step by Step Solution
- Step 1: Write the proportion equation
1,609,632,001.30 : 2,414,448,001.95 = 575,660,391.70 : x - Step 2: Convert to fraction form
1,609,632,001.30/2,414,448,001.95 = 575,660,391.70/x - Step 3: Cross multiply
1,609,632,001.30x = 2,414,448,001.95 × 575,660,391.70 - Step 4: Simplify right side
1,609,632,001.30x = 1,389,902,082,541,819,392 - Step 5: Solve for x
x = 1,389,902,082,541,819,392/1,609,632,001.30 - Step 6: Final answer
x = 863,490,587.55
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Double scale
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Similar ratio
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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.