Finding the Fourth Proportional to 1,115,784,148.09, 1,541,905,733.73 and 836,841,396.01
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Solution
The fourth proportional to 1,115,784,148.09, 1,541,905,733.73 and 836,841,396.01 is: 1,156,433,839.77
Step by Step Solution
- Step 1: Write the proportion equation
1,115,784,148.09 : 1,541,905,733.73 = 836,841,396.01 : x - Step 2: Convert to fraction form
1,115,784,148.09/1,541,905,733.73 = 836,841,396.01/x - Step 3: Cross multiply
1,115,784,148.09x = 1,541,905,733.73 × 836,841,396.01 - Step 4: Simplify right side
1,115,784,148.09x = 1,290,330,546,730,233,856 - Step 5: Solve for x
x = 1,290,330,546,730,233,856/1,115,784,148.09 - Step 6: Final answer
x = 1,156,433,839.77
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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.