Finding the Fourth Proportional to 2,152,584,830.80, 3,228,877,246.20 and 516,809,432.80
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Solution
The fourth proportional to 2,152,584,830.80, 3,228,877,246.20 and 516,809,432.80 is: 775,214,149.20
Step by Step Solution
- Step 1: Write the proportion equation
2,152,584,830.80 : 3,228,877,246.20 = 516,809,432.80 : x - Step 2: Convert to fraction form
2,152,584,830.80/3,228,877,246.20 = 516,809,432.80/x - Step 3: Cross multiply
2,152,584,830.80x = 3,228,877,246.20 × 516,809,432.80 - Step 4: Simplify right side
2,152,584,830.80x = 1,668,714,218,189,447,936 - Step 5: Solve for x
x = 1,668,714,218,189,447,936/2,152,584,830.80 - Step 6: Final answer
x = 775,214,149.20
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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.