Finding the Fourth Proportional to 919,233,579.75, 1,267,060,455.59 and 621,767,341.05
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Solution
The fourth proportional to 919,233,579.75, 1,267,060,455.59 and 621,767,341.05 is: 857,036,587.62
Step by Step Solution
- Step 1: Write the proportion equation
919,233,579.75 : 1,267,060,455.59 = 621,767,341.05 : x - Step 2: Convert to fraction form
919,233,579.75/1,267,060,455.59 = 621,767,341.05/x - Step 3: Cross multiply
919,233,579.75x = 1,267,060,455.59 × 621,767,341.05 - Step 4: Simplify right side
919,233,579.75x = 787,816,810,418,686,976 - Step 5: Solve for x
x = 787,816,810,418,686,976/919,233,579.75 - Step 6: Final answer
x = 857,036,587.62
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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.