Finding the Fourth Proportional to 1,211,984,546.52, 1,672,539,390.32 and 676,136,213.40
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Solution
The fourth proportional to 1,211,984,546.52, 1,672,539,390.32 and 676,136,213.40 is: 933,068,374.00
Step by Step Solution
- Step 1: Write the proportion equation
1,211,984,546.52 : 1,672,539,390.32 = 676,136,213.40 : x - Step 2: Convert to fraction form
1,211,984,546.52/1,672,539,390.32 = 676,136,213.40/x - Step 3: Cross multiply
1,211,984,546.52x = 1,672,539,390.32 × 676,136,213.40 - Step 4: Simplify right side
1,211,984,546.52x = 1,130,864,450,133,309,312 - Step 5: Solve for x
x = 1,130,864,450,133,309,312/1,211,984,546.52 - Step 6: Final answer
x = 933,068,374.00
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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.