Finding the Fourth Proportional to 187,542,163.12, 258,804,759.66 and 103,909,988.68
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Solution
The fourth proportional to 187,542,163.12, 258,804,759.66 and 103,909,988.68 is: 143,393,886.47
Step by Step Solution
- Step 1: Write the proportion equation
187,542,163.12 : 258,804,759.66 = 103,909,988.68 : x - Step 2: Convert to fraction form
187,542,163.12/258,804,759.66 = 103,909,988.68/x - Step 3: Cross multiply
187,542,163.12x = 258,804,759.66 × 103,909,988.68 - Step 4: Simplify right side
187,542,163.12x = 26,892,399,646,600,724 - Step 5: Solve for x
x = 26,892,399,646,600,724/187,542,163.12 - Step 6: Final answer
x = 143,393,886.47
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.