Finding the Fourth Proportional to 3,267,381,603.80, 4,901,072,405.70 and 813,718,506.80
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Solution
The fourth proportional to 3,267,381,603.80, 4,901,072,405.70 and 813,718,506.80 is: 1,220,577,760.20
Step by Step Solution
- Step 1: Write the proportion equation
3,267,381,603.80 : 4,901,072,405.70 = 813,718,506.80 : x - Step 2: Convert to fraction form
3,267,381,603.80/4,901,072,405.70 = 813,718,506.80/x - Step 3: Cross multiply
3,267,381,603.80x = 4,901,072,405.70 × 813,718,506.80 - Step 4: Simplify right side
3,267,381,603.80x = 3,988,093,319,684,887,552 - Step 5: Solve for x
x = 3,988,093,319,684,887,552/3,267,381,603.80 - Step 6: Final answer
x = 1,220,577,760.20
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1.5x scale
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.