Finding the Fourth Proportional to 513,039,608.05, 707,975,691.58 and 278,085,223.99
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Solution
The fourth proportional to 513,039,608.05, 707,975,691.58 and 278,085,223.99 is: 383,747,328.05
Step by Step Solution
- Step 1: Write the proportion equation
513,039,608.05 : 707,975,691.58 = 278,085,223.99 : x - Step 2: Convert to fraction form
513,039,608.05/707,975,691.58 = 278,085,223.99/x - Step 3: Cross multiply
513,039,608.05x = 707,975,691.58 × 278,085,223.99 - Step 4: Simplify right side
513,039,608.05x = 196,877,578,772,499,488 - Step 5: Solve for x
x = 196,877,578,772,499,488/513,039,608.05 - Step 6: Final answer
x = 383,747,328.05
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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.