Finding the Fourth Proportional to 72,455,423.70, 108,683,135.55 and 48,268,953.30
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Solution
The fourth proportional to 72,455,423.70, 108,683,135.55 and 48,268,953.30 is: 72,403,429.95
Step by Step Solution
- Step 1: Write the proportion equation
72,455,423.70 : 108,683,135.55 = 48,268,953.30 : x - Step 2: Convert to fraction form
72,455,423.70/108,683,135.55 = 48,268,953.30/x - Step 3: Cross multiply
72,455,423.70x = 108,683,135.55 × 48,268,953.30 - Step 4: Simplify right side
72,455,423.70x = 5,246,021,194,360,519 - Step 5: Solve for x
x = 5,246,021,194,360,519/72,455,423.70 - Step 6: Final answer
x = 72,403,429.95
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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.