Finding the Fourth Proportional to 137,483,851.91, 189,731,311.47 and 74,763,618.14
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Solution
The fourth proportional to 137,483,851.91, 189,731,311.47 and 74,763,618.14 is: 103,175,748.45
Step by Step Solution
- Step 1: Write the proportion equation
137,483,851.91 : 189,731,311.47 = 74,763,618.14 : x - Step 2: Convert to fraction form
137,483,851.91/189,731,311.47 = 74,763,618.14/x - Step 3: Cross multiply
137,483,851.91x = 189,731,311.47 × 74,763,618.14 - Step 4: Simplify right side
137,483,851.91x = 14,184,999,320,418,810 - Step 5: Solve for x
x = 14,184,999,320,418,810/137,483,851.91 - Step 6: Final answer
x = 103,175,748.45
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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.