Finding the Fourth Proportional to 220,878,106.60, 331,317,159.90 and 219,534,413.80
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Solution
The fourth proportional to 220,878,106.60, 331,317,159.90 and 219,534,413.80 is: 329,301,620.70
Step by Step Solution
- Step 1: Write the proportion equation
220,878,106.60 : 331,317,159.90 = 219,534,413.80 : x - Step 2: Convert to fraction form
220,878,106.60/331,317,159.90 = 219,534,413.80/x - Step 3: Cross multiply
220,878,106.60x = 331,317,159.90 × 219,534,413.80 - Step 4: Simplify right side
220,878,106.60x = 72,735,518,480,527,360 - Step 5: Solve for x
x = 72,735,518,480,527,360/220,878,106.60 - Step 6: Final answer
x = 329,301,620.70
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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.