Finding the Fourth Proportional to 745,155,454.36, 1,028,321,327.56 and 410,639,979.19
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Solution
The fourth proportional to 745,155,454.36, 1,028,321,327.56 and 410,639,979.19 is: 566,686,918.92
Step by Step Solution
- Step 1: Write the proportion equation
745,155,454.36 : 1,028,321,327.56 = 410,639,979.19 : x - Step 2: Convert to fraction form
745,155,454.36/1,028,321,327.56 = 410,639,979.19/x - Step 3: Cross multiply
745,155,454.36x = 1,028,321,327.56 × 410,639,979.19 - Step 4: Simplify right side
745,155,454.36x = 422,269,848,548,977,280 - Step 5: Solve for x
x = 422,269,848,548,977,280/745,155,454.36 - Step 6: Final answer
x = 566,686,918.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.