Finding the Fourth Proportional to 7,403,421.60, 11,109,279.60 and 3,142,864.80
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Solution
The fourth proportional to 7,403,421.60, 11,109,279.60 and 3,142,864.80 is: 4,716,057.75
Step by Step Solution
- Step 1: Write the proportion equation
7,403,421.60 : 11,109,279.60 = 3,142,864.80 : x - Step 2: Convert to fraction form
7,403,421.60/11,109,279.60 = 3,142,864.80/x - Step 3: Cross multiply
7,403,421.60x = 11,109,279.60 × 3,142,864.80 - Step 4: Simplify right side
7,403,421.60x = 34,914,963,808,198.08 - Step 5: Solve for x
x = 34,914,963,808,198.08/7,403,421.60 - Step 6: Final answer
x = 4,716,057.75
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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.