Finding the Fourth Proportional to 464,873,642.34, 641,512,523.29 and 253,175,694.63
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Solution
The fourth proportional to 464,873,642.34, 641,512,523.29 and 253,175,694.63 is: 349,375,322.46
Step by Step Solution
- Step 1: Write the proportion equation
464,873,642.34 : 641,512,523.29 = 253,175,694.63 : x - Step 2: Convert to fraction form
464,873,642.34/641,512,523.29 = 253,175,694.63/x - Step 3: Cross multiply
464,873,642.34x = 641,512,523.29 × 253,175,694.63 - Step 4: Simplify right side
464,873,642.34x = 162,415,378,697,789,792 - Step 5: Solve for x
x = 162,415,378,697,789,792/464,873,642.34 - Step 6: Final answer
x = 349,375,322.46
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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.