Finding the Fourth Proportional to 37,615,923.68, 51,909,928.80 and 21,935,580.80
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Solution
The fourth proportional to 37,615,923.68, 51,909,928.80 and 21,935,580.80 is: 30,271,074.75
Step by Step Solution
- Step 1: Write the proportion equation
37,615,923.68 : 51,909,928.80 = 21,935,580.80 : x - Step 2: Convert to fraction form
37,615,923.68/51,909,928.80 = 21,935,580.80/x - Step 3: Cross multiply
37,615,923.68x = 51,909,928.80 × 21,935,580.80 - Step 4: Simplify right side
37,615,923.68x = 1,138,674,437,514,647 - Step 5: Solve for x
x = 1,138,674,437,514,647/37,615,923.68 - Step 6: Final answer
x = 30,271,074.75
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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.