Finding the Fourth Proportional to 399,450,692.63, 551,258,979.99 and 223,238,682.81
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Solution
The fourth proportional to 399,450,692.63, 551,258,979.99 and 223,238,682.81 is: 308,078,896.48
Step by Step Solution
- Step 1: Write the proportion equation
399,450,692.63 : 551,258,979.99 = 223,238,682.81 : x - Step 2: Convert to fraction form
399,450,692.63/551,258,979.99 = 223,238,682.81/x - Step 3: Cross multiply
399,450,692.63x = 551,258,979.99 × 223,238,682.81 - Step 4: Simplify right side
399,450,692.63x = 123,062,328,580,151,744 - Step 5: Solve for x
x = 123,062,328,580,151,744/399,450,692.63 - Step 6: Final answer
x = 308,078,896.48
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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.