Finding the Fourth Proportional to 842,008,471.75, 1,161,842,603.70 and 484,707,182.59
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Solution
The fourth proportional to 842,008,471.75, 1,161,842,603.70 and 484,707,182.59 is: 668,821,602.09
Step by Step Solution
- Step 1: Write the proportion equation
842,008,471.75 : 1,161,842,603.70 = 484,707,182.59 : x - Step 2: Convert to fraction form
842,008,471.75/1,161,842,603.70 = 484,707,182.59/x - Step 3: Cross multiply
842,008,471.75x = 1,161,842,603.70 × 484,707,182.59 - Step 4: Simplify right side
842,008,471.75x = 563,153,455,052,456,896 - Step 5: Solve for x
x = 563,153,455,052,456,896/842,008,471.75 - Step 6: Final answer
x = 668,821,602.09
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1.5x scale
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.