Finding the Fourth Proportional to 372,051,587.78, 513,427,116.67 and 204,784,272.80
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Solution
The fourth proportional to 372,051,587.78, 513,427,116.67 and 204,784,272.80 is: 282,600,053.80
Step by Step Solution
- Step 1: Write the proportion equation
372,051,587.78 : 513,427,116.67 = 204,784,272.80 : x - Step 2: Convert to fraction form
372,051,587.78/513,427,116.67 = 204,784,272.80/x - Step 3: Cross multiply
372,051,587.78x = 513,427,116.67 × 204,784,272.80 - Step 4: Simplify right side
372,051,587.78x = 105,141,798,723,066,720 - Step 5: Solve for x
x = 105,141,798,723,066,720/372,051,587.78 - Step 6: Final answer
x = 282,600,053.80
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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.