Finding the Fourth Proportional to 8,389,726.25, 11,578,710.58 and 5,128,449.98
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Solution
The fourth proportional to 8,389,726.25, 11,578,710.58 and 5,128,449.98 is: 7,077,804.00
Step by Step Solution
- Step 1: Write the proportion equation
8,389,726.25 : 11,578,710.58 = 5,128,449.98 : x - Step 2: Convert to fraction form
8,389,726.25/11,578,710.58 = 5,128,449.98/x - Step 3: Cross multiply
8,389,726.25x = 11,578,710.58 × 5,128,449.98 - Step 4: Simplify right side
8,389,726.25x = 59,380,837,971,712.11 - Step 5: Solve for x
x = 59,380,837,971,712.11/8,389,726.25 - Step 6: Final answer
x = 7,077,804.00
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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.