Finding the Fourth Proportional to 86,938,163.80, 130,295,271.30 and 66,642,803.80
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Solution
The fourth proportional to 86,938,163.80, 130,295,271.30 and 66,642,803.80 is: 99,878,371.27
Step by Step Solution
- Step 1: Write the proportion equation
86,938,163.80 : 130,295,271.30 = 66,642,803.80 : x - Step 2: Convert to fraction form
86,938,163.80/130,295,271.30 = 66,642,803.80/x - Step 3: Cross multiply
86,938,163.80x = 130,295,271.30 × 66,642,803.80 - Step 4: Simplify right side
86,938,163.80x = 8,683,242,201,313,670 - Step 5: Solve for x
x = 8,683,242,201,313,670/86,938,163.80 - Step 6: Final answer
x = 99,878,371.27
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.