Finding the Fourth Proportional to 10,201,616.80, 15,302,425.20 and 7,889,848.45
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Solution
The fourth proportional to 10,201,616.80, 15,302,425.20 and 7,889,848.45 is: 11,834,772.68
Step by Step Solution
- Step 1: Write the proportion equation
10,201,616.80 : 15,302,425.20 = 7,889,848.45 : x - Step 2: Convert to fraction form
10,201,616.80/15,302,425.20 = 7,889,848.45/x - Step 3: Cross multiply
10,201,616.80x = 15,302,425.20 × 7,889,848.45 - Step 4: Simplify right side
10,201,616.80x = 120,733,815,745,460.94 - Step 5: Solve for x
x = 120,733,815,745,460.94/10,201,616.80 - Step 6: Final answer
x = 11,834,772.68
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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.