Finding the Fourth Proportional to 155,196,020.55, 214,175,678.67 and 84,635,480.65
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Solution
The fourth proportional to 155,196,020.55, 214,175,678.67 and 84,635,480.65 is: 116,799,782.90
Step by Step Solution
- Step 1: Write the proportion equation
155,196,020.55 : 214,175,678.67 = 84,635,480.65 : x - Step 2: Convert to fraction form
155,196,020.55/214,175,678.67 = 84,635,480.65/x - Step 3: Cross multiply
155,196,020.55x = 214,175,678.67 × 84,635,480.65 - Step 4: Simplify right side
155,196,020.55x = 18,126,861,506,922,580 - Step 5: Solve for x
x = 18,126,861,506,922,580/155,196,020.55 - Step 6: Final answer
x = 116,799,782.90
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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.