Finding the Fourth Proportional to 128,202,483.60, 192,303,725.40 and 37,329,037.20
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Solution
The fourth proportional to 128,202,483.60, 192,303,725.40 and 37,329,037.20 is: 55,993,555.80
Step by Step Solution
- Step 1: Write the proportion equation
128,202,483.60 : 192,303,725.40 = 37,329,037.20 : x - Step 2: Convert to fraction form
128,202,483.60/192,303,725.40 = 37,329,037.20/x - Step 3: Cross multiply
128,202,483.60x = 192,303,725.40 × 37,329,037.20 - Step 4: Simplify right side
128,202,483.60x = 7,178,512,919,155,186 - Step 5: Solve for x
x = 7,178,512,919,155,186/128,202,483.60 - Step 6: Final answer
x = 55,993,555.80
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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.