Finding the Fourth Proportional to 18,759,281.54, 28,119,413.12 and 7,252,651.71
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Solution
The fourth proportional to 18,759,281.54, 28,119,413.12 and 7,252,651.71 is: 10,871,434.99
Step by Step Solution
- Step 1: Write the proportion equation
18,759,281.54 : 28,119,413.12 = 7,252,651.71 : x - Step 2: Convert to fraction form
18,759,281.54/28,119,413.12 = 7,252,651.71/x - Step 3: Cross multiply
18,759,281.54x = 28,119,413.12 × 7,252,651.71 - Step 4: Simplify right side
18,759,281.54x = 203,940,309,612,701.16 - Step 5: Solve for x
x = 203,940,309,612,701.16/18,759,281.54 - Step 6: Final answer
x = 10,871,434.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.