Finding the Fourth Proportional to 73,507,657.80, 110,261,486.70 and 54,375,781.80
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Solution
The fourth proportional to 73,507,657.80, 110,261,486.70 and 54,375,781.80 is: 81,563,672.70
Step by Step Solution
- Step 1: Write the proportion equation
73,507,657.80 : 110,261,486.70 = 54,375,781.80 : x - Step 2: Convert to fraction form
73,507,657.80/110,261,486.70 = 54,375,781.80/x - Step 3: Cross multiply
73,507,657.80x = 110,261,486.70 × 54,375,781.80 - Step 4: Simplify right side
73,507,657.80x = 5,995,554,541,742,802 - Step 5: Solve for x
x = 5,995,554,541,742,802/73,507,657.80 - Step 6: Final answer
x = 81,563,672.70
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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.