Finding the Fourth Proportional to 7,721,204,785.48, 11,586,275,535.84 and 3,238,897,996.90
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Solution
The fourth proportional to 7,721,204,785.48, 11,586,275,535.84 and 3,238,897,996.90 is: 4,860,221,386.06
Step by Step Solution
- Step 1: Write the proportion equation
7,721,204,785.48 : 11,586,275,535.84 = 3,238,897,996.90 : x - Step 2: Convert to fraction form
7,721,204,785.48/11,586,275,535.84 = 3,238,897,996.90/x - Step 3: Cross multiply
7,721,204,785.48x = 11,586,275,535.84 × 3,238,897,996.90 - Step 4: Simplify right side
7,721,204,785.48x = 37,526,764,624,563,650,560 - Step 5: Solve for x
x = 37,526,764,624,563,650,560/7,721,204,785.48 - Step 6: Final answer
x = 4,860,221,386.06
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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.