Finding the Fourth Proportional to 427,780,634.62, 641,595,101.47 and 194,556,718.41
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Solution
The fourth proportional to 427,780,634.62, 641,595,101.47 and 194,556,718.41 is: 291,800,580.45
Step by Step Solution
- Step 1: Write the proportion equation
427,780,634.62 : 641,595,101.47 = 194,556,718.41 : x - Step 2: Convert to fraction form
427,780,634.62/641,595,101.47 = 194,556,718.41/x - Step 3: Cross multiply
427,780,634.62x = 641,595,101.47 × 194,556,718.41 - Step 4: Simplify right side
427,780,634.62x = 124,826,637,487,677,968 - Step 5: Solve for x
x = 124,826,637,487,677,968/427,780,634.62 - Step 6: Final answer
x = 291,800,580.45
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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.