Finding the Fourth Proportional to 664,281,627.20, 996,422,440.80 and 255,351,118.40
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Solution
The fourth proportional to 664,281,627.20, 996,422,440.80 and 255,351,118.40 is: 383,026,677.60
Step by Step Solution
- Step 1: Write the proportion equation
664,281,627.20 : 996,422,440.80 = 255,351,118.40 : x - Step 2: Convert to fraction form
664,281,627.20/996,422,440.80 = 255,351,118.40/x - Step 3: Cross multiply
664,281,627.20x = 996,422,440.80 × 255,351,118.40 - Step 4: Simplify right side
664,281,627.20x = 254,437,584,657,137,792 - Step 5: Solve for x
x = 254,437,584,657,137,792/664,281,627.20 - Step 6: Final answer
x = 383,026,677.60
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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.