Finding the Fourth Proportional to 10,778,863.70, 16,168,295.55 and 7,377,641.30
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Solution
The fourth proportional to 10,778,863.70, 16,168,295.55 and 7,377,641.30 is: 11,066,461.95
Step by Step Solution
- Step 1: Write the proportion equation
10,778,863.70 : 16,168,295.55 = 7,377,641.30 : x - Step 2: Convert to fraction form
10,778,863.70/16,168,295.55 = 7,377,641.30/x - Step 3: Cross multiply
10,778,863.70x = 16,168,295.55 × 7,377,641.30 - Step 4: Simplify right side
10,778,863.70x = 119,283,885,000,286.22 - Step 5: Solve for x
x = 119,283,885,000,286.22/10,778,863.70 - Step 6: Final answer
x = 11,066,461.95
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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.