Finding the Fourth Proportional to 22,971,253.42, 31,698,378.39 and 13,181,487.07
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Solution
The fourth proportional to 22,971,253.42, 31,698,378.39 and 13,181,487.07 is: 18,189,332.43
Step by Step Solution
- Step 1: Write the proportion equation
22,971,253.42 : 31,698,378.39 = 13,181,487.07 : x - Step 2: Convert to fraction form
22,971,253.42/31,698,378.39 = 13,181,487.07/x - Step 3: Cross multiply
22,971,253.42x = 31,698,378.39 × 13,181,487.07 - Step 4: Simplify right side
22,971,253.42x = 417,831,764,887,752.44 - Step 5: Solve for x
x = 417,831,764,887,752.44/22,971,253.42 - Step 6: Final answer
x = 18,189,332.43
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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.