Finding the Fourth Proportional to 10,643,901.40, 15,975,945.90 and 6,588,120.84
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Solution
The fourth proportional to 10,643,901.40, 15,975,945.90 and 6,588,120.84 is: 9,888,428.89
Step by Step Solution
- Step 1: Write the proportion equation
10,643,901.40 : 15,975,945.90 = 6,588,120.84 : x - Step 2: Convert to fraction form
10,643,901.40/15,975,945.90 = 6,588,120.84/x - Step 3: Cross multiply
10,643,901.40x = 15,975,945.90 × 6,588,120.84 - Step 4: Simplify right side
10,643,901.40x = 105,251,462,122,502.56 - Step 5: Solve for x
x = 105,251,462,122,502.56/10,643,901.40 - Step 6: Final answer
x = 9,888,428.89
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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.