Finding the Fourth Proportional to 93,312,081.30, 139,968,121.95 and 87,638,711.70
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Solution
The fourth proportional to 93,312,081.30, 139,968,121.95 and 87,638,711.70 is: 131,458,067.55
Step by Step Solution
- Step 1: Write the proportion equation
93,312,081.30 : 139,968,121.95 = 87,638,711.70 : x - Step 2: Convert to fraction form
93,312,081.30/139,968,121.95 = 87,638,711.70/x - Step 3: Cross multiply
93,312,081.30x = 139,968,121.95 × 87,638,711.70 - Step 4: Simplify right side
93,312,081.30x = 12,266,625,886,766,492 - Step 5: Solve for x
x = 12,266,625,886,766,492/93,312,081.30 - Step 6: Final answer
x = 131,458,067.55
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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.