Finding the Fourth Proportional to 649,315,760.14, 896,031,743.29 and 351,951,617.81
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Solution
The fourth proportional to 649,315,760.14, 896,031,743.29 and 351,951,617.81 is: 485,680,220.66
Step by Step Solution
- Step 1: Write the proportion equation
649,315,760.14 : 896,031,743.29 = 351,951,617.81 : x - Step 2: Convert to fraction form
649,315,760.14/896,031,743.29 = 351,951,617.81/x - Step 3: Cross multiply
649,315,760.14x = 896,031,743.29 × 351,951,617.81 - Step 4: Simplify right side
649,315,760.14x = 315,359,821,660,006,080 - Step 5: Solve for x
x = 315,359,821,660,006,080/649,315,760.14 - Step 6: Final answer
x = 485,680,220.66
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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.