Finding the Fourth Proportional to 22,765,652.68, 31,415,932.74 and 12,452,152.72
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Solution
The fourth proportional to 22,765,652.68, 31,415,932.74 and 12,452,152.72 is: 17,183,605.40
Step by Step Solution
- Step 1: Write the proportion equation
22,765,652.68 : 31,415,932.74 = 12,452,152.72 : x - Step 2: Convert to fraction form
22,765,652.68/31,415,932.74 = 12,452,152.72/x - Step 3: Cross multiply
22,765,652.68x = 31,415,932.74 × 12,452,152.72 - Step 4: Simplify right side
22,765,652.68x = 391,195,992,319,728.06 - Step 5: Solve for x
x = 391,195,992,319,728.06/22,765,652.68 - Step 6: Final answer
x = 17,183,605.40
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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.