Finding the Fourth Proportional to 86,986,353.60, 130,479,530.40 and 58,320,907.20
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Solution
The fourth proportional to 86,986,353.60, 130,479,530.40 and 58,320,907.20 is: 87,481,360.80
Step by Step Solution
- Step 1: Write the proportion equation
86,986,353.60 : 130,479,530.40 = 58,320,907.20 : x - Step 2: Convert to fraction form
86,986,353.60/130,479,530.40 = 58,320,907.20/x - Step 3: Cross multiply
86,986,353.60x = 130,479,530.40 × 58,320,907.20 - Step 4: Simplify right side
86,986,353.60x = 7,609,684,583,957,980 - Step 5: Solve for x
x = 7,609,684,583,957,980/86,986,353.60 - Step 6: Final answer
x = 87,481,360.80
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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.