Finding the Fourth Proportional to 2,158,675,048.85, 2,978,916,739.87 and 1,206,063,119.75
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Solution
The fourth proportional to 2,158,675,048.85, 2,978,916,739.87 and 1,206,063,119.75 is: 1,664,336,472.82
Step by Step Solution
- Step 1: Write the proportion equation
2,158,675,048.85 : 2,978,916,739.87 = 1,206,063,119.75 : x - Step 2: Convert to fraction form
2,158,675,048.85/2,978,916,739.87 = 1,206,063,119.75/x - Step 3: Cross multiply
2,158,675,048.85x = 2,978,916,739.87 × 1,206,063,119.75 - Step 4: Simplify right side
2,158,675,048.85x = 3,592,761,616,754,006,016 - Step 5: Solve for x
x = 3,592,761,616,754,006,016/2,158,675,048.85 - Step 6: Final answer
x = 1,664,336,472.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.