Finding the Fourth Proportional to 472,395,877.20, 708,593,815.80 and 416,913,436.80
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Solution
The fourth proportional to 472,395,877.20, 708,593,815.80 and 416,913,436.80 is: 625,370,155.20
Step by Step Solution
- Step 1: Write the proportion equation
472,395,877.20 : 708,593,815.80 = 416,913,436.80 : x - Step 2: Convert to fraction form
472,395,877.20/708,593,815.80 = 416,913,436.80/x - Step 3: Cross multiply
472,395,877.20x = 708,593,815.80 × 416,913,436.80 - Step 4: Simplify right side
472,395,877.20x = 295,422,283,040,404,160 - Step 5: Solve for x
x = 295,422,283,040,404,160/472,395,877.20 - Step 6: Final answer
x = 625,370,155.20
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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.