Finding the Fourth Proportional to 6,688,218.70, 10,032,328.05 and 1,639,529.20
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Solution
The fourth proportional to 6,688,218.70, 10,032,328.05 and 1,639,529.20 is: 2,459,293.80
Step by Step Solution
- Step 1: Write the proportion equation
6,688,218.70 : 10,032,328.05 = 1,639,529.20 : x - Step 2: Convert to fraction form
6,688,218.70/10,032,328.05 = 1,639,529.20/x - Step 3: Cross multiply
6,688,218.70x = 10,032,328.05 × 1,639,529.20 - Step 4: Simplify right side
6,688,218.70x = 16,448,294,781,954.06 - Step 5: Solve for x
x = 16,448,294,781,954.06/6,688,218.70 - Step 6: Final answer
x = 2,459,293.80
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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.