Finding the Fourth Proportional to 851,962,371.40, 1,277,943,557.10 and 760,129,366.60
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Solution
The fourth proportional to 851,962,371.40, 1,277,943,557.10 and 760,129,366.60 is: 1,140,194,049.90
Step by Step Solution
- Step 1: Write the proportion equation
851,962,371.40 : 1,277,943,557.10 = 760,129,366.60 : x - Step 2: Convert to fraction form
851,962,371.40/1,277,943,557.10 = 760,129,366.60/x - Step 3: Cross multiply
851,962,371.40x = 1,277,943,557.10 × 760,129,366.60 - Step 4: Simplify right side
851,962,371.40x = 971,402,426,608,973,952 - Step 5: Solve for x
x = 971,402,426,608,973,952/851,962,371.40 - Step 6: Final answer
x = 1,140,194,049.90
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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.