Finding the Fourth Proportional to 5,106,788.19, 7,047,365.99 and 2,814,987.15
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Solution
The fourth proportional to 5,106,788.19, 7,047,365.99 and 2,814,987.15 is: 3,884,681.32
Step by Step Solution
- Step 1: Write the proportion equation
5,106,788.19 : 7,047,365.99 = 2,814,987.15 : x - Step 2: Convert to fraction form
5,106,788.19/7,047,365.99 = 2,814,987.15/x - Step 3: Cross multiply
5,106,788.19x = 7,047,365.99 × 2,814,987.15 - Step 4: Simplify right side
5,106,788.19x = 19,838,244,689,122.09 - Step 5: Solve for x
x = 19,838,244,689,122.09/5,106,788.19 - Step 6: Final answer
x = 3,884,681.32
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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.