Finding the Fourth Proportional to 149,478,420.30, 224,217,630.45 and 68,856,852.30
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Solution
The fourth proportional to 149,478,420.30, 224,217,630.45 and 68,856,852.30 is: 103,285,278.45
Step by Step Solution
- Step 1: Write the proportion equation
149,478,420.30 : 224,217,630.45 = 68,856,852.30 : x - Step 2: Convert to fraction form
149,478,420.30/224,217,630.45 = 68,856,852.30/x - Step 3: Cross multiply
149,478,420.30x = 224,217,630.45 × 68,856,852.30 - Step 4: Simplify right side
149,478,420.30x = 15,438,920,262,951,632 - Step 5: Solve for x
x = 15,438,920,262,951,632/149,478,420.30 - Step 6: Final answer
x = 103,285,278.45
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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.