Finding the Fourth Proportional to 13,306,414.60, 19,959,621.90 and 4,785,643.90
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Solution
The fourth proportional to 13,306,414.60, 19,959,621.90 and 4,785,643.90 is: 7,178,465.85
Step by Step Solution
- Step 1: Write the proportion equation
13,306,414.60 : 19,959,621.90 = 4,785,643.90 : x - Step 2: Convert to fraction form
13,306,414.60/19,959,621.90 = 4,785,643.90/x - Step 3: Cross multiply
13,306,414.60x = 19,959,621.90 × 4,785,643.90 - Step 4: Simplify right side
13,306,414.60x = 95,519,642,792,041.41 - Step 5: Solve for x
x = 95,519,642,792,041.41/13,306,414.60 - Step 6: Final answer
x = 7,178,465.85
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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.