Finding the Fourth Proportional to 1,235,246,354.40, 1,852,869,531.60 and 417,346,845.60
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Solution
The fourth proportional to 1,235,246,354.40, 1,852,869,531.60 and 417,346,845.60 is: 626,020,268.40
Step by Step Solution
- Step 1: Write the proportion equation
1,235,246,354.40 : 1,852,869,531.60 = 417,346,845.60 : x - Step 2: Convert to fraction form
1,235,246,354.40/1,852,869,531.60 = 417,346,845.60/x - Step 3: Cross multiply
1,235,246,354.40x = 1,852,869,531.60 × 417,346,845.60 - Step 4: Simplify right side
1,235,246,354.40x = 773,289,254,321,609,472 - Step 5: Solve for x
x = 773,289,254,321,609,472/1,235,246,354.40 - Step 6: Final answer
x = 626,020,268.40
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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.