Finding the Fourth Proportional to 1,214,117,127.06, 1,821,053,126.88 and 823,154,251.68
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Solution
The fourth proportional to 1,214,117,127.06, 1,821,053,126.88 and 823,154,251.68 is: 1,234,648,281.06
Step by Step Solution
- Step 1: Write the proportion equation
1,214,117,127.06 : 1,821,053,126.88 = 823,154,251.68 : x - Step 2: Convert to fraction form
1,214,117,127.06/1,821,053,126.88 = 823,154,251.68/x - Step 3: Cross multiply
1,214,117,127.06x = 1,821,053,126.88 × 823,154,251.68 - Step 4: Simplify right side
1,214,117,127.06x = 1,499,007,623,926,430,464 - Step 5: Solve for x
x = 1,499,007,623,926,430,464/1,214,117,127.06 - Step 6: Final answer
x = 1,234,648,281.06
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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.