Finding the Fourth Proportional to 1,459,316,149.76, 2,013,858,229.21 and 790,262,349.17
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Solution
The fourth proportional to 1,459,316,149.76, 2,013,858,229.21 and 790,262,349.17 is: 1,090,563,093.79
Step by Step Solution
- Step 1: Write the proportion equation
1,459,316,149.76 : 2,013,858,229.21 = 790,262,349.17 : x - Step 2: Convert to fraction form
1,459,316,149.76/2,013,858,229.21 = 790,262,349.17/x - Step 3: Cross multiply
1,459,316,149.76x = 2,013,858,229.21 × 790,262,349.17 - Step 4: Simplify right side
1,459,316,149.76x = 1,591,476,335,098,706,944 - Step 5: Solve for x
x = 1,591,476,335,098,706,944/1,459,316,149.76 - Step 6: Final answer
x = 1,090,563,093.79
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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.