Finding the Fourth Proportional to 159,681,625.12, 220,306,517.04 and 130,262,101.12
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Solution
The fourth proportional to 159,681,625.12, 220,306,517.04 and 130,262,101.12 is: 179,717,545.95
Step by Step Solution
- Step 1: Write the proportion equation
159,681,625.12 : 220,306,517.04 = 130,262,101.12 : x - Step 2: Convert to fraction form
159,681,625.12/220,306,517.04 = 130,262,101.12/x - Step 3: Cross multiply
159,681,625.12x = 220,306,517.04 × 130,262,101.12 - Step 4: Simplify right side
159,681,625.12x = 28,697,589,800,059,484 - Step 5: Solve for x
x = 28,697,589,800,059,484/159,681,625.12 - Step 6: Final answer
x = 179,717,545.95
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1.5x scale
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.