Finding the Fourth Proportional to 66,235,714.98, 91,389,650.69 and 55,679,240.03
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Solution
The fourth proportional to 66,235,714.98, 91,389,650.69 and 55,679,240.03 is: 76,824,207.28
Step by Step Solution
- Step 1: Write the proportion equation
66,235,714.98 : 91,389,650.69 = 55,679,240.03 : x - Step 2: Convert to fraction form
66,235,714.98/91,389,650.69 = 55,679,240.03/x - Step 3: Cross multiply
66,235,714.98x = 91,389,650.69 × 55,679,240.03 - Step 4: Simplify right side
66,235,714.98x = 5,088,506,296,708,615 - Step 5: Solve for x
x = 5,088,506,296,708,615/66,235,714.98 - Step 6: Final answer
x = 76,824,207.28
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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.