Finding the Fourth Proportional to 38,555,505.19, 57,831,129.02 and 28,191,345.03
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Solution
The fourth proportional to 38,555,505.19, 57,831,129.02 and 28,191,345.03 is: 42,285,461.02
Step by Step Solution
- Step 1: Write the proportion equation
38,555,505.19 : 57,831,129.02 = 28,191,345.03 : x - Step 2: Convert to fraction form
38,555,505.19/57,831,129.02 = 28,191,345.03/x - Step 3: Cross multiply
38,555,505.19x = 57,831,129.02 × 28,191,345.03 - Step 4: Simplify right side
38,555,505.19x = 1,630,337,311,747,744.25 - Step 5: Solve for x
x = 1,630,337,311,747,744.25/38,555,505.19 - Step 6: Final answer
x = 42,285,461.02
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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.