Finding the Fourth Proportional to 48,871,572.16, 67,438,836.48 and 28,246,354.24
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Solution
The fourth proportional to 48,871,572.16, 67,438,836.48 and 28,246,354.24 is: 38,977,695.63
Step by Step Solution
- Step 1: Write the proportion equation
48,871,572.16 : 67,438,836.48 = 28,246,354.24 : x - Step 2: Convert to fraction form
48,871,572.16/67,438,836.48 = 28,246,354.24/x - Step 3: Cross multiply
48,871,572.16x = 67,438,836.48 × 28,246,354.24 - Step 4: Simplify right side
48,871,572.16x = 1,904,901,264,747,514.75 - Step 5: Solve for x
x = 1,904,901,264,747,514.75/48,871,572.16 - Step 6: Final answer
x = 38,977,695.63
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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.