Finding the Fourth Proportional to 7,777,809.60, 11,666,714.40 and 6,518,097.60
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Solution
The fourth proportional to 7,777,809.60, 11,666,714.40 and 6,518,097.60 is: 9,777,146.40
Step by Step Solution
- Step 1: Write the proportion equation
7,777,809.60 : 11,666,714.40 = 6,518,097.60 : x - Step 2: Convert to fraction form
7,777,809.60/11,666,714.40 = 6,518,097.60/x - Step 3: Cross multiply
7,777,809.60x = 11,666,714.40 × 6,518,097.60 - Step 4: Simplify right side
7,777,809.60x = 76,044,783,130,525.44 - Step 5: Solve for x
x = 76,044,783,130,525.44/7,777,809.60 - Step 6: Final answer
x = 9,777,146.40
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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.