Finding the Fourth Proportional to 19,888,052.70, 29,832,079.05 and 10,306,368.30
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Solution
The fourth proportional to 19,888,052.70, 29,832,079.05 and 10,306,368.30 is: 15,459,552.45
Step by Step Solution
- Step 1: Write the proportion equation
19,888,052.70 : 29,832,079.05 = 10,306,368.30 : x - Step 2: Convert to fraction form
19,888,052.70/29,832,079.05 = 10,306,368.30/x - Step 3: Cross multiply
19,888,052.70x = 29,832,079.05 × 10,306,368.30 - Step 4: Simplify right side
19,888,052.70x = 307,460,393,844,014.12 - Step 5: Solve for x
x = 307,460,393,844,014.12/19,888,052.70 - Step 6: Final answer
x = 15,459,552.45
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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.