Finding the Fourth Proportional to 78,889,413.05, 118,334,117.76 and 21,381,683.08
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Solution
The fourth proportional to 78,889,413.05, 118,334,117.76 and 21,381,683.08 is: 32,072,524.13
Step by Step Solution
- Step 1: Write the proportion equation
78,889,413.05 : 118,334,117.76 = 21,381,683.08 : x - Step 2: Convert to fraction form
78,889,413.05/118,334,117.76 = 21,381,683.08/x - Step 3: Cross multiply
78,889,413.05x = 118,334,117.76 × 21,381,683.08 - Step 4: Simplify right side
78,889,413.05x = 2,530,182,603,495,719.50 - Step 5: Solve for x
x = 2,530,182,603,495,719.50/78,889,413.05 - Step 6: Final answer
x = 32,072,524.13
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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.