Finding the Fourth Proportional to 86,349,296.32, 129,487,075.72 and 49,982,788.68
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Solution
The fourth proportional to 86,349,296.32, 129,487,075.72 and 49,982,788.68 is: 74,952,841.75
Step by Step Solution
- Step 1: Write the proportion equation
86,349,296.32 : 129,487,075.72 = 49,982,788.68 : x - Step 2: Convert to fraction form
86,349,296.32/129,487,075.72 = 49,982,788.68/x - Step 3: Cross multiply
86,349,296.32x = 129,487,075.72 × 49,982,788.68 - Step 4: Simplify right side
86,349,296.32x = 6,472,125,142,503,919 - Step 5: Solve for x
x = 6,472,125,142,503,919/86,349,296.32 - Step 6: Final answer
x = 74,952,841.75
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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.