Finding the Fourth Proportional to 93,312,078.30, 139,968,117.45 and 87,638,708.70
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Solution
The fourth proportional to 93,312,078.30, 139,968,117.45 and 87,638,708.70 is: 131,458,063.05
Step by Step Solution
- Step 1: Write the proportion equation
93,312,078.30 : 139,968,117.45 = 87,638,708.70 : x - Step 2: Convert to fraction form
93,312,078.30/139,968,117.45 = 87,638,708.70/x - Step 3: Cross multiply
93,312,078.30x = 139,968,117.45 × 87,638,708.70 - Step 4: Simplify right side
93,312,078.30x = 12,266,625,072,487,936 - Step 5: Solve for x
x = 12,266,625,072,487,936/93,312,078.30 - Step 6: Final answer
x = 131,458,063.05
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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.