Finding the Fourth Proportional to 7,726,278.60, 11,590,973.10 and 6,472,787.40
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Solution
The fourth proportional to 7,726,278.60, 11,590,973.10 and 6,472,787.40 is: 9,710,483.99
Step by Step Solution
- Step 1: Write the proportion equation
7,726,278.60 : 11,590,973.10 = 6,472,787.40 : x - Step 2: Convert to fraction form
7,726,278.60/11,590,973.10 = 6,472,787.40/x - Step 3: Cross multiply
7,726,278.60x = 11,590,973.10 × 6,472,787.40 - Step 4: Simplify right side
7,726,278.60x = 75,025,904,635,418.94 - Step 5: Solve for x
x = 75,025,904,635,418.94/7,726,278.60 - Step 6: Final answer
x = 9,710,483.99
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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.