Finding the Fourth Proportional to 155,052,559.76, 213,977,096.64 and 85,442,424.68
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Solution
The fourth proportional to 155,052,559.76, 213,977,096.64 and 85,442,424.68 is: 117,913,061.17
Step by Step Solution
- Step 1: Write the proportion equation
155,052,559.76 : 213,977,096.64 = 85,442,424.68 : x - Step 2: Convert to fraction form
155,052,559.76/213,977,096.64 = 85,442,424.68/x - Step 3: Cross multiply
155,052,559.76x = 213,977,096.64 × 85,442,424.68 - Step 4: Simplify right side
155,052,559.76x = 18,282,721,962,908,280 - Step 5: Solve for x
x = 18,282,721,962,908,280/155,052,559.76 - Step 6: Final answer
x = 117,913,061.17
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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.