Finding the Fourth Proportional to 420,901,272,080.73, 631,351,908,121.09 and 420,901,272,080.73
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Solution
The fourth proportional to 420,901,272,080.73, 631,351,908,121.09 and 420,901,272,080.73 is: 631,351,908,121.09
Step by Step Solution
- Step 1: Write the proportion equation
420,901,272,080.73 : 631,351,908,121.09 = 420,901,272,080.73 : x - Step 2: Convert to fraction form
420,901,272,080.73/631,351,908,121.09 = 420,901,272,080.73/x - Step 3: Cross multiply
420,901,272,080.73x = 631,351,908,121.09 × 420,901,272,080.73 - Step 4: Simplify right side
420,901,272,080.73x = 265,736,821,258,762,925,899,776 - Step 5: Solve for x
x = 265,736,821,258,762,925,899,776/420,901,272,080.73 - Step 6: Final answer
x = 631,351,908,121.09
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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.