Finding the Fourth Proportional to 543,424,563.90, 749,734,601.67 and 355,362,948.54
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Solution
The fourth proportional to 543,424,563.90, 749,734,601.67 and 355,362,948.54 is: 490,275,773.99
Step by Step Solution
- Step 1: Write the proportion equation
543,424,563.90 : 749,734,601.67 = 355,362,948.54 : x - Step 2: Convert to fraction form
543,424,563.90/749,734,601.67 = 355,362,948.54/x - Step 3: Cross multiply
543,424,563.90x = 749,734,601.67 × 355,362,948.54 - Step 4: Simplify right side
543,424,563.90x = 266,427,898,671,913,600 - Step 5: Solve for x
x = 266,427,898,671,913,600/543,424,563.90 - Step 6: Final answer
x = 490,275,773.99
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1.5x scale
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.