Finding the Fourth Proportional to 4,991,987.17, 6,888,349.47 and 2,816,403.31
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Solution
The fourth proportional to 4,991,987.17, 6,888,349.47 and 2,816,403.31 is: 3,886,302.11
Step by Step Solution
- Step 1: Write the proportion equation
4,991,987.17 : 6,888,349.47 = 2,816,403.31 : x - Step 2: Convert to fraction form
4,991,987.17/6,888,349.47 = 2,816,403.31/x - Step 3: Cross multiply
4,991,987.17x = 6,888,349.47 × 2,816,403.31 - Step 4: Simplify right side
4,991,987.17x = 19,400,370,247,744.75 - Step 5: Solve for x
x = 19,400,370,247,744.75/4,991,987.17 - Step 6: Final answer
x = 3,886,302.11
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1.5x scale
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.