Finding the Fourth Proportional to 664,270,901.20, 996,406,351.80 and 255,340,392.40
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Solution
The fourth proportional to 664,270,901.20, 996,406,351.80 and 255,340,392.40 is: 383,010,588.60
Step by Step Solution
- Step 1: Write the proportion equation
664,270,901.20 : 996,406,351.80 = 255,340,392.40 : x - Step 2: Convert to fraction form
664,270,901.20/996,406,351.80 = 255,340,392.40/x - Step 3: Cross multiply
664,270,901.20x = 996,406,351.80 × 255,340,392.40 - Step 4: Simplify right side
664,270,901.20x = 254,422,788,858,464,448 - Step 5: Solve for x
x = 254,422,788,858,464,448/664,270,901.20 - Step 6: Final answer
x = 383,010,588.60
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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.