Finding the Fourth Proportional to 90,127,509.18, 124,375,995.66 and 48,874,390.62
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Solution
The fourth proportional to 90,127,509.18, 124,375,995.66 and 48,874,390.62 is: 67,446,676.95
Step by Step Solution
- Step 1: Write the proportion equation
90,127,509.18 : 124,375,995.66 = 48,874,390.62 : x - Step 2: Convert to fraction form
90,127,509.18/124,375,995.66 = 48,874,390.62/x - Step 3: Cross multiply
90,127,509.18x = 124,375,995.66 × 48,874,390.62 - Step 4: Simplify right side
90,127,509.18x = 6,078,800,995,638,264 - Step 5: Solve for x
x = 6,078,800,995,638,264/90,127,509.18 - Step 6: Final answer
x = 67,446,676.95
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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.