Finding the Fourth Proportional to 832,772,032.40, 1,247,646,394.20 and 678,583,283.60
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Solution
The fourth proportional to 832,772,032.40, 1,247,646,394.20 and 678,583,283.60 is: 1,016,643,155.64
Step by Step Solution
- Step 1: Write the proportion equation
832,772,032.40 : 1,247,646,394.20 = 678,583,283.60 : x - Step 2: Convert to fraction form
832,772,032.40/1,247,646,394.20 = 678,583,283.60/x - Step 3: Cross multiply
832,772,032.40x = 1,247,646,394.20 × 678,583,283.60 - Step 4: Simplify right side
832,772,032.40x = 846,631,986,947,936,000 - Step 5: Solve for x
x = 846,631,986,947,936,000/832,772,032.40 - Step 6: Final answer
x = 1,016,643,155.64
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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.