Finding the Fourth Proportional to 257,833,784.08, 386,761,342.20 and 76,080,964.24
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Solution
The fourth proportional to 257,833,784.08, 386,761,342.20 and 76,080,964.24 is: 114,124,593.68
Step by Step Solution
- Step 1: Write the proportion equation
257,833,784.08 : 386,761,342.20 = 76,080,964.24 : x - Step 2: Convert to fraction form
257,833,784.08/386,761,342.20 = 76,080,964.24/x - Step 3: Cross multiply
257,833,784.08x = 386,761,342.20 × 76,080,964.24 - Step 4: Simplify right side
257,833,784.08x = 29,425,175,845,332,600 - Step 5: Solve for x
x = 29,425,175,845,332,600/257,833,784.08 - Step 6: Final answer
x = 114,124,593.68
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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.