Finding the Fourth Proportional to 542,040,412.17, 813,058,985.30 and 153,863,571.09
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Solution
The fourth proportional to 542,040,412.17, 813,058,985.30 and 153,863,571.09 is: 230,794,893.11
Step by Step Solution
- Step 1: Write the proportion equation
542,040,412.17 : 813,058,985.30 = 153,863,571.09 : x - Step 2: Convert to fraction form
542,040,412.17/813,058,985.30 = 153,863,571.09/x - Step 3: Cross multiply
542,040,412.17x = 813,058,985.30 × 153,863,571.09 - Step 4: Simplify right side
542,040,412.17x = 125,100,158,988,215,712 - Step 5: Solve for x
x = 125,100,158,988,215,712/542,040,412.17 - Step 6: Final answer
x = 230,794,893.11
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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.