Finding the Fourth Proportional to 2,129,141.53, 2,937,822.22 and 1,211,317.09
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Solution
The fourth proportional to 2,129,141.53, 2,937,822.22 and 1,211,317.09 is: 1,671,393.94
Step by Step Solution
- Step 1: Write the proportion equation
2,129,141.53 : 2,937,822.22 = 1,211,317.09 : x - Step 2: Convert to fraction form
2,129,141.53/2,937,822.22 = 1,211,317.09/x - Step 3: Cross multiply
2,129,141.53x = 2,937,822.22 × 1,211,317.09 - Step 4: Simplify right side
2,129,141.53x = 3,558,634,252,740.93 - Step 5: Solve for x
x = 3,558,634,252,740.93/2,129,141.53 - Step 6: Final answer
x = 1,671,393.94
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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.