Finding the Fourth Proportional to 7,242,913.60, 10,865,682.60 and 3,639,612.40
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Solution
The fourth proportional to 7,242,913.60, 10,865,682.60 and 3,639,612.40 is: 5,460,077.99
Step by Step Solution
- Step 1: Write the proportion equation
7,242,913.60 : 10,865,682.60 = 3,639,612.40 : x - Step 2: Convert to fraction form
7,242,913.60/10,865,682.60 = 3,639,612.40/x - Step 3: Cross multiply
7,242,913.60x = 10,865,682.60 × 3,639,612.40 - Step 4: Simplify right side
7,242,913.60x = 39,546,873,125,424.23 - Step 5: Solve for x
x = 39,546,873,125,424.23/7,242,913.60 - Step 6: Final answer
x = 5,460,077.99
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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.