Finding the Fourth Proportional to 165,031,432.80, 227,749,523.52 and 98,962,687.68
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Solution
The fourth proportional to 165,031,432.80, 227,749,523.52 and 98,962,687.68 is: 136,572,194.66
Step by Step Solution
- Step 1: Write the proportion equation
165,031,432.80 : 227,749,523.52 = 98,962,687.68 : x - Step 2: Convert to fraction form
165,031,432.80/227,749,523.52 = 98,962,687.68/x - Step 3: Cross multiply
165,031,432.80x = 227,749,523.52 × 98,962,687.68 - Step 4: Simplify right side
165,031,432.80x = 22,538,704,965,378,576 - Step 5: Solve for x
x = 22,538,704,965,378,576/165,031,432.80 - Step 6: Final answer
x = 136,572,194.66
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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.