Finding the Fourth Proportional to 19,583,315.20, 29,374,972.80 and 15,552,236.80
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Solution
The fourth proportional to 19,583,315.20, 29,374,972.80 and 15,552,236.80 is: 23,328,355.20
Step by Step Solution
- Step 1: Write the proportion equation
19,583,315.20 : 29,374,972.80 = 15,552,236.80 : x - Step 2: Convert to fraction form
19,583,315.20/29,374,972.80 = 15,552,236.80/x - Step 3: Cross multiply
19,583,315.20x = 29,374,972.80 × 15,552,236.80 - Step 4: Simplify right side
19,583,315.20x = 456,846,532,979,159.06 - Step 5: Solve for x
x = 456,846,532,979,159.06/19,583,315.20 - Step 6: Final answer
x = 23,328,355.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.