Finding the Fourth Proportional to 128,901,448,389.06, 176,595,614,389.46 and 124,070,251,533.62
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Solution
The fourth proportional to 128,901,448,389.06, 176,595,614,389.46 and 124,070,251,533.62 is: 169,976,851,081.64
Step by Step Solution
- Step 1: Write the proportion equation
128,901,448,389.06 : 176,595,614,389.46 = 124,070,251,533.62 : x - Step 2: Convert to fraction form
128,901,448,389.06/176,595,614,389.46 = 124,070,251,533.62/x - Step 3: Cross multiply
128,901,448,389.06x = 176,595,614,389.46 × 124,070,251,533.62 - Step 4: Simplify right side
128,901,448,389.06x = 21,910,262,297,034,464,690,176 - Step 5: Solve for x
x = 21,910,262,297,034,464,690,176/128,901,448,389.06 - Step 6: Final answer
x = 169,976,851,081.64
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.