Finding the Fourth Proportional to 11,377,273.76, 15,700,639.20 and 6,220,638.88
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Solution
The fourth proportional to 11,377,273.76, 15,700,639.20 and 6,220,638.88 is: 8,584,482.43
Step by Step Solution
- Step 1: Write the proportion equation
11,377,273.76 : 15,700,639.20 = 6,220,638.88 : x - Step 2: Convert to fraction form
11,377,273.76/15,700,639.20 = 6,220,638.88/x - Step 3: Cross multiply
11,377,273.76x = 15,700,639.20 × 6,220,638.88 - Step 4: Simplify right side
11,377,273.76x = 97,668,006,648,372.09 - Step 5: Solve for x
x = 97,668,006,648,372.09/11,377,273.76 - Step 6: Final answer
x = 8,584,482.43
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.