Finding the Fourth Proportional to 775,949,201.12, 1,164,437,868.36 and 426,439,351.04
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Solution
The fourth proportional to 775,949,201.12, 1,164,437,868.36 and 426,439,351.04 is: 639,941,542.81
Step by Step Solution
- Step 1: Write the proportion equation
775,949,201.12 : 1,164,437,868.36 = 426,439,351.04 : x - Step 2: Convert to fraction form
775,949,201.12/1,164,437,868.36 = 426,439,351.04/x - Step 3: Cross multiply
775,949,201.12x = 1,164,437,868.36 × 426,439,351.04 - Step 4: Simplify right side
775,949,201.12x = 496,562,128,909,839,360 - Step 5: Solve for x
x = 496,562,128,909,839,360/775,949,201.12 - Step 6: Final answer
x = 639,941,542.81
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1.5x scale
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.