Finding the Fourth Proportional to 83,770,256.70, 125,655,385.05 and 23,185,982.70
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Solution
The fourth proportional to 83,770,256.70, 125,655,385.05 and 23,185,982.70 is: 34,778,974.05
Step by Step Solution
- Step 1: Write the proportion equation
83,770,256.70 : 125,655,385.05 = 23,185,982.70 : x - Step 2: Convert to fraction form
83,770,256.70/125,655,385.05 = 23,185,982.70/x - Step 3: Cross multiply
83,770,256.70x = 125,655,385.05 × 23,185,982.70 - Step 4: Simplify right side
83,770,256.70x = 2,913,443,583,931,138.50 - Step 5: Solve for x
x = 2,913,443,583,931,138.50/83,770,256.70 - Step 6: Final answer
x = 34,778,974.05
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Double scale
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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.