Finding the Fourth Proportional to 30,586,525.74, 42,210,318.98 and 18,832,574.99
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Solution
The fourth proportional to 30,586,525.74, 42,210,318.98 and 18,832,574.99 is: 25,989,515.92
Step by Step Solution
- Step 1: Write the proportion equation
30,586,525.74 : 42,210,318.98 = 18,832,574.99 : x - Step 2: Convert to fraction form
30,586,525.74/42,210,318.98 = 18,832,574.99/x - Step 3: Cross multiply
30,586,525.74x = 42,210,318.98 × 18,832,574.99 - Step 4: Simplify right side
30,586,525.74x = 794,928,997,695,277.62 - Step 5: Solve for x
x = 794,928,997,695,277.62/30,586,525.74 - Step 6: Final answer
x = 25,989,515.92
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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.