Finding the Fourth Proportional to 1,344,391,099.96, 1,855,391,975.86 and 815,713,593.16
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Solution
The fourth proportional to 1,344,391,099.96, 1,855,391,975.86 and 815,713,593.16 is: 1,125,765,006.47
Step by Step Solution
- Step 1: Write the proportion equation
1,344,391,099.96 : 1,855,391,975.86 = 815,713,593.16 : x - Step 2: Convert to fraction form
1,344,391,099.96/1,855,391,975.86 = 815,713,593.16/x - Step 3: Cross multiply
1,344,391,099.96x = 1,855,391,975.86 × 815,713,593.16 - Step 4: Simplify right side
1,344,391,099.96x = 1,513,468,455,348,992,512 - Step 5: Solve for x
x = 1,513,468,455,348,992,512/1,344,391,099.96 - Step 6: Final answer
x = 1,125,765,006.47
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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.