Finding the Fourth Proportional to 10,712,431.28, 14,787,679.05 and 7,232,484.17
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Solution
The fourth proportional to 10,712,431.28, 14,787,679.05 and 7,232,484.17 is: 9,983,882.45
Step by Step Solution
- Step 1: Write the proportion equation
10,712,431.28 : 14,787,679.05 = 7,232,484.17 : x - Step 2: Convert to fraction form
10,712,431.28/14,787,679.05 = 7,232,484.17/x - Step 3: Cross multiply
10,712,431.28x = 14,787,679.05 × 7,232,484.17 - Step 4: Simplify right side
10,712,431.28x = 106,951,654,640,165.64 - Step 5: Solve for x
x = 106,951,654,640,165.64/10,712,431.28 - Step 6: Final answer
x = 9,983,882.45
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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.