Finding the Fourth Proportional to 7,117,958,664.80, 10,676,937,997.20 and 6,634,229,256.80
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Solution
The fourth proportional to 7,117,958,664.80, 10,676,937,997.20 and 6,634,229,256.80 is: 9,951,343,885.20
Step by Step Solution
- Step 1: Write the proportion equation
7,117,958,664.80 : 10,676,937,997.20 = 6,634,229,256.80 : x - Step 2: Convert to fraction form
7,117,958,664.80/10,676,937,997.20 = 6,634,229,256.80/x - Step 3: Cross multiply
7,117,958,664.80x = 10,676,937,997.20 × 6,634,229,256.80 - Step 4: Simplify right side
7,117,958,664.80x = 70,833,254,434,063,843,328 - Step 5: Solve for x
x = 70,833,254,434,063,843,328/7,117,958,664.80 - Step 6: Final answer
x = 9,951,343,885.20
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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.