Finding the Fourth Proportional to 220,473,498,037.74, 304,213,037,845.70 and 122,812,708,615.90
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Solution
The fourth proportional to 220,473,498,037.74, 304,213,037,845.70 and 122,812,708,615.90 is: 169,459,039,325.02
Step by Step Solution
- Step 1: Write the proportion equation
220,473,498,037.74 : 304,213,037,845.70 = 122,812,708,615.90 : x - Step 2: Convert to fraction form
220,473,498,037.74/304,213,037,845.70 = 122,812,708,615.90/x - Step 3: Cross multiply
220,473,498,037.74x = 304,213,037,845.70 × 122,812,708,615.90 - Step 4: Simplify right side
220,473,498,037.74x = 37,361,227,174,101,714,468,864 - Step 5: Solve for x
x = 37,361,227,174,101,714,468,864/220,473,498,037.74 - Step 6: Final answer
x = 169,459,039,325.02
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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.