Finding the Fourth Proportional to 2,556,436,278.20, 3,834,654,417.30 and 920,448,303.80
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Solution
The fourth proportional to 2,556,436,278.20, 3,834,654,417.30 and 920,448,303.80 is: 1,380,672,455.70
Step by Step Solution
- Step 1: Write the proportion equation
2,556,436,278.20 : 3,834,654,417.30 = 920,448,303.80 : x - Step 2: Convert to fraction form
2,556,436,278.20/3,834,654,417.30 = 920,448,303.80/x - Step 3: Cross multiply
2,556,436,278.20x = 3,834,654,417.30 × 920,448,303.80 - Step 4: Simplify right side
2,556,436,278.20x = 3,529,601,154,062,962,176 - Step 5: Solve for x
x = 3,529,601,154,062,962,176/2,556,436,278.20 - Step 6: Final answer
x = 1,380,672,455.70
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1.5x scale
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.