Finding the Fourth Proportional to 75,102,440.96, 103,608,354.15 and 45,316,474.99
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Solution
The fourth proportional to 75,102,440.96, 103,608,354.15 and 45,316,474.99 is: 62,516,814.76
Step by Step Solution
- Step 1: Write the proportion equation
75,102,440.96 : 103,608,354.15 = 45,316,474.99 : x - Step 2: Convert to fraction form
75,102,440.96/103,608,354.15 = 45,316,474.99/x - Step 3: Cross multiply
75,102,440.96x = 103,608,354.15 × 45,316,474.99 - Step 4: Simplify right side
75,102,440.96x = 4,695,165,389,334,517 - Step 5: Solve for x
x = 4,695,165,389,334,517/75,102,440.96 - Step 6: Final answer
x = 62,516,814.76
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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.