Finding the Fourth Proportional to 717,502,063.07, 990,152,859.44 and 387,477,202.07
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Solution
The fourth proportional to 717,502,063.07, 990,152,859.44 and 387,477,202.07 is: 534,718,545.55
Step by Step Solution
- Step 1: Write the proportion equation
717,502,063.07 : 990,152,859.44 = 387,477,202.07 : x - Step 2: Convert to fraction form
717,502,063.07/990,152,859.44 = 387,477,202.07/x - Step 3: Cross multiply
717,502,063.07x = 990,152,859.44 × 387,477,202.07 - Step 4: Simplify right side
717,502,063.07x = 383,661,659,597,421,184 - Step 5: Solve for x
x = 383,661,659,597,421,184/717,502,063.07 - Step 6: Final answer
x = 534,718,545.55
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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.