Finding the Fourth Proportional to 1,679,623,909.20, 2,519,435,863.80 and 1,557,179,902.80
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Solution
The fourth proportional to 1,679,623,909.20, 2,519,435,863.80 and 1,557,179,902.80 is: 2,335,769,854.20
Step by Step Solution
- Step 1: Write the proportion equation
1,679,623,909.20 : 2,519,435,863.80 = 1,557,179,902.80 : x - Step 2: Convert to fraction form
1,679,623,909.20/2,519,435,863.80 = 1,557,179,902.80/x - Step 3: Cross multiply
1,679,623,909.20x = 2,519,435,863.80 × 1,557,179,902.80 - Step 4: Simplify right side
1,679,623,909.20x = 3,923,214,893,502,918,144 - Step 5: Solve for x
x = 3,923,214,893,502,918,144/1,679,623,909.20 - Step 6: Final answer
x = 2,335,769,854.20
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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.