Finding the Fourth Proportional to 1,291,317,975.12, 1,936,964,197.62 and 591,611,637
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Solution
The fourth proportional to 1,291,317,975.12, 1,936,964,197.62 and 591,611,637 is: 887,411,607.24
Step by Step Solution
- Step 1: Write the proportion equation
1,291,317,975.12 : 1,936,964,197.62 = 591,611,637 : x - Step 2: Convert to fraction form
1,291,317,975.12/1,936,964,197.62 = 591,611,637/x - Step 3: Cross multiply
1,291,317,975.12x = 1,936,964,197.62 × 591,611,637 - Step 4: Simplify right side
1,291,317,975.12x = 1,145,930,559,764,359,680 - Step 5: Solve for x
x = 1,145,930,559,764,359,680/1,291,317,975.12 - Step 6: Final answer
x = 887,411,607.24
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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.