Finding the Fourth Proportional to 7,476,978.71, 11,215,557.06 and 2,085,301.09
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Solution
The fourth proportional to 7,476,978.71, 11,215,557.06 and 2,085,301.09 is: 3,127,976.45
Step by Step Solution
- Step 1: Write the proportion equation
7,476,978.71 : 11,215,557.06 = 2,085,301.09 : x - Step 2: Convert to fraction form
7,476,978.71/11,215,557.06 = 2,085,301.09/x - Step 3: Cross multiply
7,476,978.71x = 11,215,557.06 × 2,085,301.09 - Step 4: Simplify right side
7,476,978.71x = 23,387,813,341,956.18 - Step 5: Solve for x
x = 23,387,813,341,956.18/7,476,978.71 - Step 6: Final answer
x = 3,127,976.45
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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.