Finding the Fourth Proportional to 51,442,416.94, 70,990,613.15 and 27,920,962.13
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Solution
The fourth proportional to 51,442,416.94, 70,990,613.15 and 27,920,962.13 is: 38,530,969.95
Step by Step Solution
- Step 1: Write the proportion equation
51,442,416.94 : 70,990,613.15 = 27,920,962.13 : x - Step 2: Convert to fraction form
51,442,416.94/70,990,613.15 = 27,920,962.13/x - Step 3: Cross multiply
51,442,416.94x = 70,990,613.15 × 27,920,962.13 - Step 4: Simplify right side
51,442,416.94x = 1,982,126,221,346,630 - Step 5: Solve for x
x = 1,982,126,221,346,630/51,442,416.94 - Step 6: Final answer
x = 38,530,969.95
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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.