Finding the Fourth Proportional to 717,502,027.19, 990,152,809.97 and 387,477,166.19
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Solution
The fourth proportional to 717,502,027.19, 990,152,809.97 and 387,477,166.19 is: 534,718,496.06
Step by Step Solution
- Step 1: Write the proportion equation
717,502,027.19 : 990,152,809.97 = 387,477,166.19 : x - Step 2: Convert to fraction form
717,502,027.19/990,152,809.97 = 387,477,166.19/x - Step 3: Cross multiply
717,502,027.19x = 990,152,809.97 × 387,477,166.19 - Step 4: Simplify right side
717,502,027.19x = 383,661,604,895,353,024 - Step 5: Solve for x
x = 383,661,604,895,353,024/717,502,027.19 - Step 6: Final answer
x = 534,718,496.06
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1.5x scale
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.