Finding the Fourth Proportional to 7,764,603.40, 11,657,402.70 and 4,930,251.40
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Solution
The fourth proportional to 7,764,603.40, 11,657,402.70 and 4,930,251.40 is: 7,402,042.71
Step by Step Solution
- Step 1: Write the proportion equation
7,764,603.40 : 11,657,402.70 = 4,930,251.40 : x - Step 2: Convert to fraction form
7,764,603.40/11,657,402.70 = 4,930,251.40/x - Step 3: Cross multiply
7,764,603.40x = 11,657,402.70 × 4,930,251.40 - Step 4: Simplify right side
7,764,603.40x = 57,473,925,982,038.78 - Step 5: Solve for x
x = 57,473,925,982,038.78/7,764,603.40 - Step 6: Final answer
x = 7,402,042.71
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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.