Finding the Fourth Proportional to 649,315,751.42, 896,031,731.16 and 351,951,609.09
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Solution
The fourth proportional to 649,315,751.42, 896,031,731.16 and 351,951,609.09 is: 485,680,208.57
Step by Step Solution
- Step 1: Write the proportion equation
649,315,751.42 : 896,031,731.16 = 351,951,609.09 : x - Step 2: Convert to fraction form
649,315,751.42/896,031,731.16 = 351,951,609.09/x - Step 3: Cross multiply
649,315,751.42x = 896,031,731.16 × 351,951,609.09 - Step 4: Simplify right side
649,315,751.42x = 315,359,809,573,860,032 - Step 5: Solve for x
x = 315,359,809,573,860,032/649,315,751.42 - Step 6: Final answer
x = 485,680,208.57
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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.