Finding the Fourth Proportional to 286,716,812.88, 430,073,991.84 and 79,454,631.52
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Solution
The fourth proportional to 286,716,812.88, 430,073,991.84 and 79,454,631.52 is: 119,181,607.12
Step by Step Solution
- Step 1: Write the proportion equation
286,716,812.88 : 430,073,991.84 = 79,454,631.52 : x - Step 2: Convert to fraction form
286,716,812.88/430,073,991.84 = 79,454,631.52/x - Step 3: Cross multiply
286,716,812.88x = 430,073,991.84 × 79,454,631.52 - Step 4: Simplify right side
286,716,812.88x = 34,171,370,547,982,684 - Step 5: Solve for x
x = 34,171,370,547,982,684/286,716,812.88 - Step 6: Final answer
x = 119,181,607.12
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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.