Finding the Fourth Proportional to 39,249,572.60, 54,163,420.19 and 21,608,299.08
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Solution
The fourth proportional to 39,249,572.60, 54,163,420.19 and 21,608,299.08 is: 29,818,907.70
Step by Step Solution
- Step 1: Write the proportion equation
39,249,572.60 : 54,163,420.19 = 21,608,299.08 : x - Step 2: Convert to fraction form
39,249,572.60/54,163,420.19 = 21,608,299.08/x - Step 3: Cross multiply
39,249,572.60x = 54,163,420.19 × 21,608,299.08 - Step 4: Simplify right side
39,249,572.60x = 1,170,379,382,618,796.25 - Step 5: Solve for x
x = 1,170,379,382,618,796.25/39,249,572.60 - Step 6: Final answer
x = 29,818,907.70
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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.