Finding the Fourth Proportional to 39,535,548.80, 59,187,849.60 and 28,198,140.80
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Solution
The fourth proportional to 39,535,548.80, 59,187,849.60 and 28,198,140.80 is: 42,214,851.38
Step by Step Solution
- Step 1: Write the proportion equation
39,535,548.80 : 59,187,849.60 = 28,198,140.80 : x - Step 2: Convert to fraction form
39,535,548.80/59,187,849.60 = 28,198,140.80/x - Step 3: Cross multiply
39,535,548.80x = 59,187,849.60 × 28,198,140.80 - Step 4: Simplify right side
39,535,548.80x = 1,668,987,316,670,023.75 - Step 5: Solve for x
x = 1,668,987,316,670,023.75/39,535,548.80 - Step 6: Final answer
x = 42,214,851.38
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.