Finding the Fourth Proportional to 13,358,776,785.19, 18,441,388,456.19 and 7,718,901,687.97
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Solution
The fourth proportional to 13,358,776,785.19, 18,441,388,456.19 and 7,718,901,687.97 is: 10,655,710,981.02
Step by Step Solution
- Step 1: Write the proportion equation
13,358,776,785.19 : 18,441,388,456.19 = 7,718,901,687.97 : x - Step 2: Convert to fraction form
13,358,776,785.19/18,441,388,456.19 = 7,718,901,687.97/x - Step 3: Cross multiply
13,358,776,785.19x = 18,441,388,456.19 × 7,718,901,687.97 - Step 4: Simplify right side
13,358,776,785.19x = 142,347,264,482,932,064,256 - Step 5: Solve for x
x = 142,347,264,482,932,064,256/13,358,776,785.19 - Step 6: Final answer
x = 10,655,710,981.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.