Finding the Fourth Proportional to 395,078,731.75, 592,492,490.92 and 369,286,507.63
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Solution
The fourth proportional to 395,078,731.75, 592,492,490.92 and 369,286,507.63 is: 553,812,354.82
Step by Step Solution
- Step 1: Write the proportion equation
395,078,731.75 : 592,492,490.92 = 369,286,507.63 : x - Step 2: Convert to fraction form
395,078,731.75/592,492,490.92 = 369,286,507.63/x - Step 3: Cross multiply
395,078,731.75x = 592,492,490.92 × 369,286,507.63 - Step 4: Simplify right side
395,078,731.75x = 218,799,482,768,846,272 - Step 5: Solve for x
x = 218,799,482,768,846,272/395,078,731.75 - Step 6: Final answer
x = 553,812,354.82
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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.