Finding the Fourth Proportional to 638,867,953.98, 958,206,022.80 and 202,111,888.19
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Solution
The fourth proportional to 638,867,953.98, 958,206,022.80 and 202,111,888.19 is: 303,137,490.83
Step by Step Solution
- Step 1: Write the proportion equation
638,867,953.98 : 958,206,022.80 = 202,111,888.19 : x - Step 2: Convert to fraction form
638,867,953.98/958,206,022.80 = 202,111,888.19/x - Step 3: Cross multiply
638,867,953.98x = 958,206,022.80 × 202,111,888.19 - Step 4: Simplify right side
638,867,953.98x = 193,664,828,538,347,168 - Step 5: Solve for x
x = 193,664,828,538,347,168/638,867,953.98 - Step 6: Final answer
x = 303,137,490.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.