Finding the Fourth Proportional to 7,623,973.99, 10,521,084.18 and 4,186,215.10
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Solution
The fourth proportional to 7,623,973.99, 10,521,084.18 and 4,186,215.10 is: 5,776,976.88
Step by Step Solution
- Step 1: Write the proportion equation
7,623,973.99 : 10,521,084.18 = 4,186,215.10 : x - Step 2: Convert to fraction form
7,623,973.99/10,521,084.18 = 4,186,215.10/x - Step 3: Cross multiply
7,623,973.99x = 10,521,084.18 × 4,186,215.10 - Step 4: Simplify right side
7,623,973.99x = 44,043,521,462,687.12 - Step 5: Solve for x
x = 44,043,521,462,687.12/7,623,973.99 - Step 6: Final answer
x = 5,776,976.88
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1.5x scale
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.