Finding the Fourth Proportional to 10,959,621.80, 16,439,432.70 and 5,920,773.80
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Solution
The fourth proportional to 10,959,621.80, 16,439,432.70 and 5,920,773.80 is: 8,881,160.70
Step by Step Solution
- Step 1: Write the proportion equation
10,959,621.80 : 16,439,432.70 = 5,920,773.80 : x - Step 2: Convert to fraction form
10,959,621.80/16,439,432.70 = 5,920,773.80/x - Step 3: Cross multiply
10,959,621.80x = 16,439,432.70 × 5,920,773.80 - Step 4: Simplify right side
10,959,621.80x = 97,334,162,417,023.25 - Step 5: Solve for x
x = 97,334,162,417,023.25/10,959,621.80 - Step 6: Final answer
x = 8,881,160.70
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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.