Finding the Fourth Proportional to 420,901,272,079.23, 631,351,908,118.84 and 420,901,272,079.23
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Solution
The fourth proportional to 420,901,272,079.23, 631,351,908,118.84 and 420,901,272,079.23 is: 631,351,908,118.84
Step by Step Solution
- Step 1: Write the proportion equation
420,901,272,079.23 : 631,351,908,118.84 = 420,901,272,079.23 : x - Step 2: Convert to fraction form
420,901,272,079.23/631,351,908,118.84 = 420,901,272,079.23/x - Step 3: Cross multiply
420,901,272,079.23x = 631,351,908,118.84 × 420,901,272,079.23 - Step 4: Simplify right side
420,901,272,079.23x = 265,736,821,256,868,878,876,672 - Step 5: Solve for x
x = 265,736,821,256,868,878,876,672/420,901,272,079.23 - Step 6: Final answer
x = 631,351,908,118.84
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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.