Finding the Fourth Proportional to 12,561,938,129.73, 18,842,907,194.60 and 12,474,768,519.70
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Solution
The fourth proportional to 12,561,938,129.73, 18,842,907,194.60 and 12,474,768,519.70 is: 18,712,152,779.56
Step by Step Solution
- Step 1: Write the proportion equation
12,561,938,129.73 : 18,842,907,194.60 = 12,474,768,519.70 : x - Step 2: Convert to fraction form
12,561,938,129.73/18,842,907,194.60 = 12,474,768,519.70/x - Step 3: Cross multiply
12,561,938,129.73x = 18,842,907,194.60 × 12,474,768,519.70 - Step 4: Simplify right side
12,561,938,129.73x = 235,060,905,490,824,724,480 - Step 5: Solve for x
x = 235,060,905,490,824,724,480/12,561,938,129.73 - Step 6: Final answer
x = 18,712,152,779.56
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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.