Finding the Fourth Proportional to 1,286,820,885.84, 1,775,670,734.16 and 722,176,261.80
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Solution
The fourth proportional to 1,286,820,885.84, 1,775,670,734.16 and 722,176,261.80 is: 996,523,499.96
Step by Step Solution
- Step 1: Write the proportion equation
1,286,820,885.84 : 1,775,670,734.16 = 722,176,261.80 : x - Step 2: Convert to fraction form
1,286,820,885.84/1,775,670,734.16 = 722,176,261.80/x - Step 3: Cross multiply
1,286,820,885.84x = 1,775,670,734.16 × 722,176,261.80 - Step 4: Simplify right side
1,286,820,885.84x = 1,282,347,252,983,330,304 - Step 5: Solve for x
x = 1,282,347,252,983,330,304/1,286,820,885.84 - Step 6: Final answer
x = 996,523,499.96
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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.