Finding the Fourth Proportional to 129,331,552.88, 178,450,899.98 and 74,316,780.56
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Solution
The fourth proportional to 129,331,552.88, 178,450,899.98 and 74,316,780.56 is: 102,541,847.52
Step by Step Solution
- Step 1: Write the proportion equation
129,331,552.88 : 178,450,899.98 = 74,316,780.56 : x - Step 2: Convert to fraction form
129,331,552.88/178,450,899.98 = 74,316,780.56/x - Step 3: Cross multiply
129,331,552.88x = 178,450,899.98 × 74,316,780.56 - Step 4: Simplify right side
129,331,552.88x = 13,261,896,374,548,168 - Step 5: Solve for x
x = 13,261,896,374,548,168/129,331,552.88 - Step 6: Final answer
x = 102,541,847.52
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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.