Finding the Fourth Proportional to 1,345,203,291.20, 2,017,804,936.80 and 618,192,003.20
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Solution
The fourth proportional to 1,345,203,291.20, 2,017,804,936.80 and 618,192,003.20 is: 927,288,004.80
Step by Step Solution
- Step 1: Write the proportion equation
1,345,203,291.20 : 2,017,804,936.80 = 618,192,003.20 : x - Step 2: Convert to fraction form
1,345,203,291.20/2,017,804,936.80 = 618,192,003.20/x - Step 3: Cross multiply
1,345,203,291.20x = 2,017,804,936.80 × 618,192,003.20 - Step 4: Simplify right side
1,345,203,291.20x = 1,247,390,875,947,241,472 - Step 5: Solve for x
x = 1,247,390,875,947,241,472/1,345,203,291.20 - Step 6: Final answer
x = 927,288,004.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.