Finding the Fourth Proportional to 1,885,843,374.01, 2,829,202,753.40 and 642,284,611.62
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Solution
The fourth proportional to 1,885,843,374.01, 2,829,202,753.40 and 642,284,611.62 is: 963,575,987.65
Step by Step Solution
- Step 1: Write the proportion equation
1,885,843,374.01 : 2,829,202,753.40 = 642,284,611.62 : x - Step 2: Convert to fraction form
1,885,843,374.01/2,829,202,753.40 = 642,284,611.62/x - Step 3: Cross multiply
1,885,843,374.01x = 2,829,202,753.40 × 642,284,611.62 - Step 4: Simplify right side
1,885,843,374.01x = 1,817,153,391,673,958,912 - Step 5: Solve for x
x = 1,817,153,391,673,958,912/1,885,843,374.01 - Step 6: Final answer
x = 963,575,987.65
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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.