Finding the Fourth Proportional to 7,643,866.95, 10,548,972.87 and 4,381,225.17
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Solution
The fourth proportional to 7,643,866.95, 10,548,972.87 and 4,381,225.17 is: 6,046,340.91
Step by Step Solution
- Step 1: Write the proportion equation
7,643,866.95 : 10,548,972.87 = 4,381,225.17 : x - Step 2: Convert to fraction form
7,643,866.95/10,548,972.87 = 4,381,225.17/x - Step 3: Cross multiply
7,643,866.95x = 10,548,972.87 × 4,381,225.17 - Step 4: Simplify right side
7,643,866.95x = 46,217,425,455,691.13 - Step 5: Solve for x
x = 46,217,425,455,691.13/7,643,866.95 - Step 6: Final answer
x = 6,046,340.91
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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.