Finding the Fourth Proportional to 5,282,823.35, 7,290,323.12 and 2,991,430.55
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Solution
The fourth proportional to 5,282,823.35, 7,290,323.12 and 2,991,430.55 is: 4,128,189.39
Step by Step Solution
- Step 1: Write the proportion equation
5,282,823.35 : 7,290,323.12 = 2,991,430.55 : x - Step 2: Convert to fraction form
5,282,823.35/7,290,323.12 = 2,991,430.55/x - Step 3: Cross multiply
5,282,823.35x = 7,290,323.12 × 2,991,430.55 - Step 4: Simplify right side
5,282,823.35x = 21,808,495,300,539.32 - Step 5: Solve for x
x = 21,808,495,300,539.32/5,282,823.35 - Step 6: Final answer
x = 4,128,189.39
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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.