Finding the Fourth Proportional to 12,887,908.30, 19,331,425.05 and 3,303,380.80
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Solution
The fourth proportional to 12,887,908.30, 19,331,425.05 and 3,303,380.80 is: 4,954,959.09
Step by Step Solution
- Step 1: Write the proportion equation
12,887,908.30 : 19,331,425.05 = 3,303,380.80 : x - Step 2: Convert to fraction form
12,887,908.30/19,331,425.05 = 3,303,380.80/x - Step 3: Cross multiply
12,887,908.30x = 19,331,425.05 × 3,303,380.80 - Step 4: Simplify right side
12,887,908.30x = 63,859,058,346,809.04 - Step 5: Solve for x
x = 63,859,058,346,809.04/12,887,908.30 - Step 6: Final answer
x = 4,954,959.09
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1.5x scale
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.