Finding the Fourth Proportional to 2,167,307,701.88, 2,991,132,741.92 and 1,214,945,660.75
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Solution
The fourth proportional to 2,167,307,701.88, 2,991,132,741.92 and 1,214,945,660.75 is: 1,676,764,098.77
Step by Step Solution
- Step 1: Write the proportion equation
2,167,307,701.88 : 2,991,132,741.92 = 1,214,945,660.75 : x - Step 2: Convert to fraction form
2,167,307,701.88/2,991,132,741.92 = 1,214,945,660.75/x - Step 3: Cross multiply
2,167,307,701.88x = 2,991,132,741.92 × 1,214,945,660.75 - Step 4: Simplify right side
2,167,307,701.88x = 3,634,063,745,501,922,816 - Step 5: Solve for x
x = 3,634,063,745,501,922,816/2,167,307,701.88 - Step 6: Final answer
x = 1,676,764,098.77
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.