Finding the Fourth Proportional to 156,657,451.38, 216,174,288.87 and 86,089,351.02
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Solution
The fourth proportional to 156,657,451.38, 216,174,288.87 and 86,089,351.02 is: 118,796,163.68
Step by Step Solution
- Step 1: Write the proportion equation
156,657,451.38 : 216,174,288.87 = 86,089,351.02 : x - Step 2: Convert to fraction form
156,657,451.38/216,174,288.87 = 86,089,351.02/x - Step 3: Cross multiply
156,657,451.38x = 216,174,288.87 × 86,089,351.02 - Step 4: Simplify right side
156,657,451.38x = 18,610,304,236,028,308 - Step 5: Solve for x
x = 18,610,304,236,028,308/156,657,451.38 - Step 6: Final answer
x = 118,796,163.68
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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.