Finding the Fourth Proportional to 117,879,835.05, 161,495,950.05 and 113,461,730.55
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Solution
The fourth proportional to 117,879,835.05, 161,495,950.05 and 113,461,730.55 is: 155,443,125.30
Step by Step Solution
- Step 1: Write the proportion equation
117,879,835.05 : 161,495,950.05 = 113,461,730.55 : x - Step 2: Convert to fraction form
117,879,835.05/161,495,950.05 = 113,461,730.55/x - Step 3: Cross multiply
117,879,835.05x = 161,495,950.05 × 113,461,730.55 - Step 4: Simplify right side
117,879,835.05x = 18,323,609,969,489,360 - Step 5: Solve for x
x = 18,323,609,969,489,360/117,879,835.05 - Step 6: Final answer
x = 155,443,125.30
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.