Finding the Fourth Proportional to 123,867,325.99, 170,947,801.65 and 68,122,570.74
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Solution
The fourth proportional to 123,867,325.99, 170,947,801.65 and 68,122,570.74 is: 94,015,137.70
Step by Step Solution
- Step 1: Write the proportion equation
123,867,325.99 : 170,947,801.65 = 68,122,570.74 : x - Step 2: Convert to fraction form
123,867,325.99/170,947,801.65 = 68,122,570.74/x - Step 3: Cross multiply
123,867,325.99x = 170,947,801.65 × 68,122,570.74 - Step 4: Simplify right side
123,867,325.99x = 11,645,403,709,554,262 - Step 5: Solve for x
x = 11,645,403,709,554,262/123,867,325.99 - Step 6: Final answer
x = 94,015,137.70
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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.