Finding the Fourth Proportional to 247,169,530.60, 370,754,295.90 and 138,330,413.80
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Solution
The fourth proportional to 247,169,530.60, 370,754,295.90 and 138,330,413.80 is: 207,495,620.70
Step by Step Solution
- Step 1: Write the proportion equation
247,169,530.60 : 370,754,295.90 = 138,330,413.80 : x - Step 2: Convert to fraction form
247,169,530.60/370,754,295.90 = 138,330,413.80/x - Step 3: Cross multiply
247,169,530.60x = 370,754,295.90 × 138,330,413.80 - Step 4: Simplify right side
247,169,530.60x = 51,286,595,169,974,648 - Step 5: Solve for x
x = 51,286,595,169,974,648/247,169,530.60 - Step 6: Final answer
x = 207,495,620.70
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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.