Finding the Fourth Proportional to 8,920,319.40, 12,310,055.46 and 4,845,941.80
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Solution
The fourth proportional to 8,920,319.40, 12,310,055.46 and 4,845,941.80 is: 6,687,407.66
Step by Step Solution
- Step 1: Write the proportion equation
8,920,319.40 : 12,310,055.46 = 4,845,941.80 : x - Step 2: Convert to fraction form
8,920,319.40/12,310,055.46 = 4,845,941.80/x - Step 3: Cross multiply
8,920,319.40x = 12,310,055.46 × 4,845,941.80 - Step 4: Simplify right side
8,920,319.40x = 59,653,812,313,932.23 - Step 5: Solve for x
x = 59,653,812,313,932.23/8,920,319.40 - Step 6: Final answer
x = 6,687,407.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.