Finding the Fourth Proportional to 42,497,581.70, 63,746,372.55 and 13,746,623.60
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Solution
The fourth proportional to 42,497,581.70, 63,746,372.55 and 13,746,623.60 is: 20,619,935.40
Step by Step Solution
- Step 1: Write the proportion equation
42,497,581.70 : 63,746,372.55 = 13,746,623.60 : x - Step 2: Convert to fraction form
42,497,581.70/63,746,372.55 = 13,746,623.60/x - Step 3: Cross multiply
42,497,581.70x = 63,746,372.55 × 13,746,623.60 - Step 4: Simplify right side
42,497,581.70x = 876,297,389,310,222.12 - Step 5: Solve for x
x = 876,297,389,310,222.12/42,497,581.70 - Step 6: Final answer
x = 20,619,935.40
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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.