Finding the Fourth Proportional to 987,888,314.50, 1,481,455,804.70 and 332,663,420.68
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Solution
The fourth proportional to 987,888,314.50, 1,481,455,804.70 and 332,663,420.68 is: 498,868,291.43
Step by Step Solution
- Step 1: Write the proportion equation
987,888,314.50 : 1,481,455,804.70 = 332,663,420.68 : x - Step 2: Convert to fraction form
987,888,314.50/1,481,455,804.70 = 332,663,420.68/x - Step 3: Cross multiply
987,888,314.50x = 1,481,455,804.70 × 332,663,420.68 - Step 4: Simplify right side
987,888,314.50x = 492,826,155,574,872,064 - Step 5: Solve for x
x = 492,826,155,574,872,064/987,888,314.50 - Step 6: Final answer
x = 498,868,291.43
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1.5x scale
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.