Finding the Fourth Proportional to 12,775,705.20, 17,630,739.99 and 6,974,731.44
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Solution
The fourth proportional to 12,775,705.20, 17,630,739.99 and 6,974,731.44 is: 9,625,275.05
Step by Step Solution
- Step 1: Write the proportion equation
12,775,705.20 : 17,630,739.99 = 6,974,731.44 : x - Step 2: Convert to fraction form
12,775,705.20/17,630,739.99 = 6,974,731.44/x - Step 3: Cross multiply
12,775,705.20x = 17,630,739.99 × 6,974,731.44 - Step 4: Simplify right side
12,775,705.20x = 122,969,676,518,718.28 - Step 5: Solve for x
x = 122,969,676,518,718.28/12,775,705.20 - Step 6: Final answer
x = 9,625,275.05
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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.