Finding the Fourth Proportional to 15,258,559.58, 21,056,830.50 and 8,289,241.74
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Solution
The fourth proportional to 15,258,559.58, 21,056,830.50 and 8,289,241.74 is: 11,439,163.53
Step by Step Solution
- Step 1: Write the proportion equation
15,258,559.58 : 21,056,830.50 = 8,289,241.74 : x - Step 2: Convert to fraction form
15,258,559.58/21,056,830.50 = 8,289,241.74/x - Step 3: Cross multiply
15,258,559.58x = 21,056,830.50 × 8,289,241.74 - Step 4: Simplify right side
15,258,559.58x = 174,545,158,313,075.75 - Step 5: Solve for x
x = 174,545,158,313,075.75/15,258,559.58 - Step 6: Final answer
x = 11,439,163.53
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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.