Finding the Fourth Proportional to 90,221,879.22, 124,733,891.58 and 66,663,258.84
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Solution
The fourth proportional to 90,221,879.22, 124,733,891.58 and 66,663,258.84 is: 92,163,539.18
Step by Step Solution
- Step 1: Write the proportion equation
90,221,879.22 : 124,733,891.58 = 66,663,258.84 : x - Step 2: Convert to fraction form
90,221,879.22/124,733,891.58 = 66,663,258.84/x - Step 3: Cross multiply
90,221,879.22x = 124,733,891.58 × 66,663,258.84 - Step 4: Simplify right side
90,221,879.22x = 8,315,167,700,518,037 - Step 5: Solve for x
x = 8,315,167,700,518,037/90,221,879.22 - Step 6: Final answer
x = 92,163,539.18
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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.