Finding the Fourth Proportional to 312,517,010.66, 468,729,884.78 and 91,128,859.62
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Solution
The fourth proportional to 312,517,010.66, 468,729,884.78 and 91,128,859.62 is: 136,679,983.53
Step by Step Solution
- Step 1: Write the proportion equation
312,517,010.66 : 468,729,884.78 = 91,128,859.62 : x - Step 2: Convert to fraction form
312,517,010.66/468,729,884.78 = 91,128,859.62/x - Step 3: Cross multiply
312,517,010.66x = 468,729,884.78 × 91,128,859.62 - Step 4: Simplify right side
312,517,010.66x = 42,714,819,869,815,392 - Step 5: Solve for x
x = 42,714,819,869,815,392/312,517,010.66 - Step 6: Final answer
x = 136,679,983.53
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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.