Finding the Fourth Proportional to 5,158,579.76, 7,118,690.28 and 2,953,368.80
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Solution
The fourth proportional to 5,158,579.76, 7,118,690.28 and 2,953,368.80 is: 4,075,563.19
Step by Step Solution
- Step 1: Write the proportion equation
5,158,579.76 : 7,118,690.28 = 2,953,368.80 : x - Step 2: Convert to fraction form
5,158,579.76/7,118,690.28 = 2,953,368.80/x - Step 3: Cross multiply
5,158,579.76x = 7,118,690.28 × 2,953,368.80 - Step 4: Simplify right side
5,158,579.76x = 21,024,117,769,815.26 - Step 5: Solve for x
x = 21,024,117,769,815.26/5,158,579.76 - Step 6: Final answer
x = 4,075,563.19
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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.