Finding the Fourth Proportional to 461,593,251.90, 636,986,957.04 and 257,910,267.96
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Solution
The fourth proportional to 461,593,251.90, 636,986,957.04 and 257,910,267.96 is: 355,909,615.45
Step by Step Solution
- Step 1: Write the proportion equation
461,593,251.90 : 636,986,957.04 = 257,910,267.96 : x - Step 2: Convert to fraction form
461,593,251.90/636,986,957.04 = 257,910,267.96/x - Step 3: Cross multiply
461,593,251.90x = 636,986,957.04 × 257,910,267.96 - Step 4: Simplify right side
461,593,251.90x = 164,285,476,777,211,392 - Step 5: Solve for x
x = 164,285,476,777,211,392/461,593,251.90 - Step 6: Final answer
x = 355,909,615.45
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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.