Finding the Fourth Proportional to 6,644,112,124.80, 9,966,168,187.20 and 6,540,799,994.40
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Solution
The fourth proportional to 6,644,112,124.80, 9,966,168,187.20 and 6,540,799,994.40 is: 9,811,199,991.60
Step by Step Solution
- Step 1: Write the proportion equation
6,644,112,124.80 : 9,966,168,187.20 = 6,540,799,994.40 : x - Step 2: Convert to fraction form
6,644,112,124.80/9,966,168,187.20 = 6,540,799,994.40/x - Step 3: Cross multiply
6,644,112,124.80x = 9,966,168,187.20 × 6,540,799,994.40 - Step 4: Simplify right side
6,644,112,124.80x = 65,186,712,823,027,220,480 - Step 5: Solve for x
x = 65,186,712,823,027,220,480/6,644,112,124.80 - Step 6: Final answer
x = 9,811,199,991.60
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Double scale
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Similar ratio
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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.