Finding the Fourth Proportional to 7,677,875.60, 11,520,787.80 and 3,132,256.40
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Solution
The fourth proportional to 7,677,875.60, 11,520,787.80 and 3,132,256.40 is: 4,700,005.99
Step by Step Solution
- Step 1: Write the proportion equation
7,677,875.60 : 11,520,787.80 = 3,132,256.40 : x - Step 2: Convert to fraction form
7,677,875.60/11,520,787.80 = 3,132,256.40/x - Step 3: Cross multiply
7,677,875.60x = 11,520,787.80 × 3,132,256.40 - Step 4: Simplify right side
7,677,875.60x = 36,086,061,319,591.92 - Step 5: Solve for x
x = 36,086,061,319,591.92/7,677,875.60 - Step 6: Final answer
x = 4,700,005.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.