Finding the Fourth Proportional to 1,771,474,943.70, 2,657,212,415.55 and 1,279,148,001.30
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Solution
The fourth proportional to 1,771,474,943.70, 2,657,212,415.55 and 1,279,148,001.30 is: 1,918,722,001.95
Step by Step Solution
- Step 1: Write the proportion equation
1,771,474,943.70 : 2,657,212,415.55 = 1,279,148,001.30 : x - Step 2: Convert to fraction form
1,771,474,943.70/2,657,212,415.55 = 1,279,148,001.30/x - Step 3: Cross multiply
1,771,474,943.70x = 2,657,212,415.55 × 1,279,148,001.30 - Step 4: Simplify right side
1,771,474,943.70x = 3,398,967,950,380,327,424 - Step 5: Solve for x
x = 3,398,967,950,380,327,424/1,771,474,943.70 - Step 6: Final answer
x = 1,918,722,001.95
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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.