Finding the Fourth Proportional to 128,112,299.84, 192,360,205.92 and 110,893,903.04
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Solution
The fourth proportional to 128,112,299.84, 192,360,205.92 and 110,893,903.04 is: 166,506,838.54
Step by Step Solution
- Step 1: Write the proportion equation
128,112,299.84 : 192,360,205.92 = 110,893,903.04 : x - Step 2: Convert to fraction form
128,112,299.84/192,360,205.92 = 110,893,903.04/x - Step 3: Cross multiply
128,112,299.84x = 192,360,205.92 × 110,893,903.04 - Step 4: Simplify right side
128,112,299.84x = 21,331,574,024,046,912 - Step 5: Solve for x
x = 21,331,574,024,046,912/128,112,299.84 - Step 6: Final answer
x = 166,506,838.54
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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.