Finding the Fourth Proportional to 53,310,479.62, 79,965,720.33 and 12,920,963.62
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Solution
The fourth proportional to 53,310,479.62, 79,965,720.33 and 12,920,963.62 is: 19,381,445.65
Step by Step Solution
- Step 1: Write the proportion equation
53,310,479.62 : 79,965,720.33 = 12,920,963.62 : x - Step 2: Convert to fraction form
53,310,479.62/79,965,720.33 = 12,920,963.62/x - Step 3: Cross multiply
53,310,479.62x = 79,965,720.33 × 12,920,963.62 - Step 4: Simplify right side
53,310,479.62x = 1,033,234,163,231,024.25 - Step 5: Solve for x
x = 1,033,234,163,231,024.25/53,310,479.62 - Step 6: Final answer
x = 19,381,445.65
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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.