Finding the Fourth Proportional to 426,516,907.92, 639,344,649.24 and 167,913,638.16
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Solution
The fourth proportional to 426,516,907.92, 639,344,649.24 and 167,913,638.16 is: 251,700,891.80
Step by Step Solution
- Step 1: Write the proportion equation
426,516,907.92 : 639,344,649.24 = 167,913,638.16 : x - Step 2: Convert to fraction form
426,516,907.92/639,344,649.24 = 167,913,638.16/x - Step 3: Cross multiply
426,516,907.92x = 639,344,649.24 × 167,913,638.16 - Step 4: Simplify right side
426,516,907.92x = 107,354,686,092,017,472 - Step 5: Solve for x
x = 107,354,686,092,017,472/426,516,907.92 - Step 6: Final answer
x = 251,700,891.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.