Finding the Fourth Proportional to 71,869,699.40, 107,804,549.10 and 26,422,089.80
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Solution
The fourth proportional to 71,869,699.40, 107,804,549.10 and 26,422,089.80 is: 39,633,134.70
Step by Step Solution
- Step 1: Write the proportion equation
71,869,699.40 : 107,804,549.10 = 26,422,089.80 : x - Step 2: Convert to fraction form
71,869,699.40/107,804,549.10 = 26,422,089.80/x - Step 3: Cross multiply
71,869,699.40x = 107,804,549.10 × 26,422,089.80 - Step 4: Simplify right side
71,869,699.40x = 2,848,421,477,168,709 - Step 5: Solve for x
x = 2,848,421,477,168,709/71,869,699.40 - Step 6: Final answer
x = 39,633,134.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.