Finding the Fourth Proportional to 865,754,328.19, 1,194,708,965.21 and 469,268,805.09
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Solution
The fourth proportional to 865,754,328.19, 1,194,708,965.21 and 469,268,805.09 is: 647,573,601.75
Step by Step Solution
- Step 1: Write the proportion equation
865,754,328.19 : 1,194,708,965.21 = 469,268,805.09 : x - Step 2: Convert to fraction form
865,754,328.19/1,194,708,965.21 = 469,268,805.09/x - Step 3: Cross multiply
865,754,328.19x = 1,194,708,965.21 × 469,268,805.09 - Step 4: Simplify right side
865,754,328.19x = 560,639,648,534,407,040 - Step 5: Solve for x
x = 560,639,648,534,407,040/865,754,328.19 - Step 6: Final answer
x = 647,573,601.75
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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.