Finding the Fourth Proportional to 7,653,630.13, 11,480,460.99 and 7,185,962.05
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Solution
The fourth proportional to 7,653,630.13, 11,480,460.99 and 7,185,962.05 is: 10,778,957.90
Step by Step Solution
- Step 1: Write the proportion equation
7,653,630.13 : 11,480,460.99 = 7,185,962.05 : x - Step 2: Convert to fraction form
7,653,630.13/11,480,460.99 = 7,185,962.05/x - Step 3: Cross multiply
7,653,630.13x = 11,480,460.99 × 7,185,962.05 - Step 4: Simplify right side
7,653,630.13x = 82,498,156,990,645.42 - Step 5: Solve for x
x = 82,498,156,990,645.42/7,653,630.13 - Step 6: Final answer
x = 10,778,957.90
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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.