Finding the Fourth Proportional to 1,620,348,969.60, 2,430,589,809.60 and 471,491,625.60
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Solution
The fourth proportional to 1,620,348,969.60, 2,430,589,809.60 and 471,491,625.60 is: 707,256,746.54
Step by Step Solution
- Step 1: Write the proportion equation
1,620,348,969.60 : 2,430,589,809.60 = 471,491,625.60 : x - Step 2: Convert to fraction form
1,620,348,969.60/2,430,589,809.60 = 471,491,625.60/x - Step 3: Cross multiply
1,620,348,969.60x = 2,430,589,809.60 × 471,491,625.60 - Step 4: Simplify right side
1,620,348,969.60x = 1,146,002,740,495,098,496 - Step 5: Solve for x
x = 1,146,002,740,495,098,496/1,620,348,969.60 - Step 6: Final answer
x = 707,256,746.54
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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.