Finding the Fourth Proportional to 139,509,386.94, 209,072,761.65 and 88,299,994.62
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Solution
The fourth proportional to 139,509,386.94, 209,072,761.65 and 88,299,994.62 is: 132,328,900.11
Step by Step Solution
- Step 1: Write the proportion equation
139,509,386.94 : 209,072,761.65 = 88,299,994.62 : x - Step 2: Convert to fraction form
139,509,386.94/209,072,761.65 = 88,299,994.62/x - Step 3: Cross multiply
139,509,386.94x = 209,072,761.65 × 88,299,994.62 - Step 4: Simplify right side
139,509,386.94x = 18,461,123,728,883,544 - Step 5: Solve for x
x = 18,461,123,728,883,544/139,509,386.94 - Step 6: Final answer
x = 132,328,900.11
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.