Finding the Fourth Proportional to 635,346,392.09, 876,506,048.33 and 396,777,400.29
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Solution
The fourth proportional to 635,346,392.09, 876,506,048.33 and 396,777,400.29 is: 547,382,963.88
Step by Step Solution
- Step 1: Write the proportion equation
635,346,392.09 : 876,506,048.33 = 396,777,400.29 : x - Step 2: Convert to fraction form
635,346,392.09/876,506,048.33 = 396,777,400.29/x - Step 3: Cross multiply
635,346,392.09x = 876,506,048.33 × 396,777,400.29 - Step 4: Simplify right side
635,346,392.09x = 347,777,791,192,854,656 - Step 5: Solve for x
x = 347,777,791,192,854,656/635,346,392.09 - Step 6: Final answer
x = 547,382,963.88
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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.