Finding the Fourth Proportional to 269,523,907.90, 371,943,240.90 and 145,764,585.02
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Solution
The fourth proportional to 269,523,907.90, 371,943,240.90 and 145,764,585.02 is: 201,155,261.45
Step by Step Solution
- Step 1: Write the proportion equation
269,523,907.90 : 371,943,240.90 = 145,764,585.02 : x - Step 2: Convert to fraction form
269,523,907.90/371,943,240.90 = 145,764,585.02/x - Step 3: Cross multiply
269,523,907.90x = 371,943,240.90 × 145,764,585.02 - Step 4: Simplify right side
269,523,907.90x = 54,216,152,160,782,392 - Step 5: Solve for x
x = 54,216,152,160,782,392/269,523,907.90 - Step 6: Final answer
x = 201,155,261.45
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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.