Finding the Fourth Proportional to 7,624,974.11, 10,513,574.35 and 5,687,871.66
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Solution
The fourth proportional to 7,624,974.11, 10,513,574.35 and 5,687,871.66 is: 7,842,631.43
Step by Step Solution
- Step 1: Write the proportion equation
7,624,974.11 : 10,513,574.35 = 5,687,871.66 : x - Step 2: Convert to fraction form
7,624,974.11/10,513,574.35 = 5,687,871.66/x - Step 3: Cross multiply
7,624,974.11x = 10,513,574.35 × 5,687,871.66 - Step 4: Simplify right side
7,624,974.11x = 59,799,861,576,448.24 - Step 5: Solve for x
x = 59,799,861,576,448.24/7,624,974.11 - Step 6: Final answer
x = 7,842,631.43
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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.