Finding the Fourth Proportional to 13,922,574.77, 19,212,863.68 and 7,727,258.05
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Solution
The fourth proportional to 13,922,574.77, 19,212,863.68 and 7,727,258.05 is: 10,663,455.43
Step by Step Solution
- Step 1: Write the proportion equation
13,922,574.77 : 19,212,863.68 = 7,727,258.05 : x - Step 2: Convert to fraction form
13,922,574.77/19,212,863.68 = 7,727,258.05/x - Step 3: Cross multiply
13,922,574.77x = 19,212,863.68 × 7,727,258.05 - Step 4: Simplify right side
13,922,574.77x = 148,462,755,496,459.53 - Step 5: Solve for x
x = 148,462,755,496,459.53/13,922,574.77 - Step 6: Final answer
x = 10,663,455.43
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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.