Finding the Fourth Proportional to 1,251,953,879,702, 1,878,038,995,989.50 and 345,391,687,861.84
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Solution
The fourth proportional to 1,251,953,879,702, 1,878,038,995,989.50 and 345,391,687,861.84 is: 518,117,375,737.17
Step by Step Solution
- Step 1: Write the proportion equation
1,251,953,879,702 : 1,878,038,995,989.50 = 345,391,687,861.84 : x - Step 2: Convert to fraction form
1,251,953,879,702/1,878,038,995,989.50 = 345,391,687,861.84/x - Step 3: Cross multiply
1,251,953,879,702x = 1,878,038,995,989.50 × 345,391,687,861.84 - Step 4: Simplify right side
1,251,953,879,702x = 648,659,058,695,168,770,179,072 - Step 5: Solve for x
x = 648,659,058,695,168,770,179,072/1,251,953,879,702 - Step 6: Final answer
x = 518,117,375,737.17
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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.