Finding the Fourth Proportional to 5,355,058.56, 7,388,155.86 and 3,422,433.99
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Solution
The fourth proportional to 5,355,058.56, 7,388,155.86 and 3,422,433.99 is: 4,721,792.57
Step by Step Solution
- Step 1: Write the proportion equation
5,355,058.56 : 7,388,155.86 = 3,422,433.99 : x - Step 2: Convert to fraction form
5,355,058.56/7,388,155.86 = 3,422,433.99/x - Step 3: Cross multiply
5,355,058.56x = 7,388,155.86 × 3,422,433.99 - Step 4: Simplify right side
5,355,058.56x = 25,285,475,738,681.68 - Step 5: Solve for x
x = 25,285,475,738,681.68/5,355,058.56 - Step 6: Final answer
x = 4,721,792.57
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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.