Finding the Fourth Proportional to 19,201,635.68, 28,802,482.69 and 7,842,084.31
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Solution
The fourth proportional to 19,201,635.68, 28,802,482.69 and 7,842,084.31 is: 11,763,138.37
Step by Step Solution
- Step 1: Write the proportion equation
19,201,635.68 : 28,802,482.69 = 7,842,084.31 : x - Step 2: Convert to fraction form
19,201,635.68/28,802,482.69 = 7,842,084.31/x - Step 3: Cross multiply
19,201,635.68x = 28,802,482.69 × 7,842,084.31 - Step 4: Simplify right side
19,201,635.68x = 225,871,497,500,684.19 - Step 5: Solve for x
x = 225,871,497,500,684.19/19,201,635.68 - Step 6: Final answer
x = 11,763,138.37
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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.