Finding the Fourth Proportional to 7,683,420.96, 10,605,112.64 and 4,420,569.92
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Solution
The fourth proportional to 7,683,420.96, 10,605,112.64 and 4,420,569.92 is: 6,101,532.40
Step by Step Solution
- Step 1: Write the proportion equation
7,683,420.96 : 10,605,112.64 = 4,420,569.92 : x - Step 2: Convert to fraction form
7,683,420.96/10,605,112.64 = 4,420,569.92/x - Step 3: Cross multiply
7,683,420.96x = 10,605,112.64 × 4,420,569.92 - Step 4: Simplify right side
7,683,420.96x = 46,880,641,934,595.79 - Step 5: Solve for x
x = 46,880,641,934,595.79/7,683,420.96 - Step 6: Final answer
x = 6,101,532.40
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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.