Finding the Fourth Proportional to 15,769,620.30, 21,757,963.58 and 9,239,741.31
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Solution
The fourth proportional to 15,769,620.30, 21,757,963.58 and 9,239,741.31 is: 12,748,433.45
Step by Step Solution
- Step 1: Write the proportion equation
15,769,620.30 : 21,757,963.58 = 9,239,741.31 : x - Step 2: Convert to fraction form
15,769,620.30/21,757,963.58 = 9,239,741.31/x - Step 3: Cross multiply
15,769,620.30x = 21,757,963.58 × 9,239,741.31 - Step 4: Simplify right side
15,769,620.30x = 201,037,955,033,617.75 - Step 5: Solve for x
x = 201,037,955,033,617.75/15,769,620.30 - Step 6: Final answer
x = 12,748,433.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.