Finding the Fourth Proportional to 137,483,846.20, 189,731,303.58 and 74,763,612.42
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Solution
The fourth proportional to 137,483,846.20, 189,731,303.58 and 74,763,612.42 is: 103,175,740.55
Step by Step Solution
- Step 1: Write the proportion equation
137,483,846.20 : 189,731,303.58 = 74,763,612.42 : x - Step 2: Convert to fraction form
137,483,846.20/189,731,303.58 = 74,763,612.42/x - Step 3: Cross multiply
137,483,846.20x = 189,731,303.58 × 74,763,612.42 - Step 4: Simplify right side
137,483,846.20x = 14,184,997,645,227,606 - Step 5: Solve for x
x = 14,184,997,645,227,606/137,483,846.20 - Step 6: Final answer
x = 103,175,740.55
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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.