Finding the Fourth Proportional to 12,965,782.93, 19,449,435.58 and 4,878,828.63
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Solution
The fourth proportional to 12,965,782.93, 19,449,435.58 and 4,878,828.63 is: 7,318,529.36
Step by Step Solution
- Step 1: Write the proportion equation
12,965,782.93 : 19,449,435.58 = 4,878,828.63 : x - Step 2: Convert to fraction form
12,965,782.93/19,449,435.58 = 4,878,828.63/x - Step 3: Cross multiply
12,965,782.93x = 19,449,435.58 × 4,878,828.63 - Step 4: Simplify right side
12,965,782.93x = 94,890,463,071,288.38 - Step 5: Solve for x
x = 94,890,463,071,288.38/12,965,782.93 - Step 6: Final answer
x = 7,318,529.36
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.