Finding the Fourth Proportional to 312,115,746.18, 430,719,692.81 and 186,667,922.71
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Solution
The fourth proportional to 312,115,746.18, 430,719,692.81 and 186,667,922.71 is: 257,601,711.26
Step by Step Solution
- Step 1: Write the proportion equation
312,115,746.18 : 430,719,692.81 = 186,667,922.71 : x - Step 2: Convert to fraction form
312,115,746.18/430,719,692.81 = 186,667,922.71/x - Step 3: Cross multiply
312,115,746.18x = 430,719,692.81 × 186,667,922.71 - Step 4: Simplify right side
312,115,746.18x = 80,401,550,327,132,032 - Step 5: Solve for x
x = 80,401,550,327,132,032/312,115,746.18 - Step 6: Final answer
x = 257,601,711.26
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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.