Finding the Fourth Proportional to 3,985,838,306.30, 5,980,458,070.65 and 1,914,493,864.70
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Solution
The fourth proportional to 3,985,838,306.30, 5,980,458,070.65 and 1,914,493,864.70 is: 2,872,557,641.45
Step by Step Solution
- Step 1: Write the proportion equation
3,985,838,306.30 : 5,980,458,070.65 = 1,914,493,864.70 : x - Step 2: Convert to fraction form
3,985,838,306.30/5,980,458,070.65 = 1,914,493,864.70/x - Step 3: Cross multiply
3,985,838,306.30x = 5,980,458,070.65 × 1,914,493,864.70 - Step 4: Simplify right side
3,985,838,306.30x = 11,449,550,284,355,022,848 - Step 5: Solve for x
x = 11,449,550,284,355,022,848/3,985,838,306.30 - Step 6: Final answer
x = 2,872,557,641.45
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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.