Finding the Fourth Proportional to 2,793,885,621.60, 4,190,828,432.40 and 828,809,551.20
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Solution
The fourth proportional to 2,793,885,621.60, 4,190,828,432.40 and 828,809,551.20 is: 1,243,214,326.80
Step by Step Solution
- Step 1: Write the proportion equation
2,793,885,621.60 : 4,190,828,432.40 = 828,809,551.20 : x - Step 2: Convert to fraction form
2,793,885,621.60/4,190,828,432.40 = 828,809,551.20/x - Step 3: Cross multiply
2,793,885,621.60x = 4,190,828,432.40 × 828,809,551.20 - Step 4: Simplify right side
2,793,885,621.60x = 3,473,398,632,213,643,776 - Step 5: Solve for x
x = 3,473,398,632,213,643,776/2,793,885,621.60 - Step 6: Final answer
x = 1,243,214,326.80
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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.