Finding the Fourth Proportional to 275,835,640.74, 413,854,352.10 and 128,353,539.12
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Solution
The fourth proportional to 275,835,640.74, 413,854,352.10 and 128,353,539.12 is: 192,577,255.90
Step by Step Solution
- Step 1: Write the proportion equation
275,835,640.74 : 413,854,352.10 = 128,353,539.12 : x - Step 2: Convert to fraction form
275,835,640.74/413,854,352.10 = 128,353,539.12/x - Step 3: Cross multiply
275,835,640.74x = 413,854,352.10 × 128,353,539.12 - Step 4: Simplify right side
275,835,640.74x = 53,119,670,772,249,608 - Step 5: Solve for x
x = 53,119,670,772,249,608/275,835,640.74 - Step 6: Final answer
x = 192,577,255.90
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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.