Finding the Fourth Proportional to 93,312,496.80, 139,968,745.20 and 80,547,415.20
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Solution
The fourth proportional to 93,312,496.80, 139,968,745.20 and 80,547,415.20 is: 120,821,122.80
Step by Step Solution
- Step 1: Write the proportion equation
93,312,496.80 : 139,968,745.20 = 80,547,415.20 : x - Step 2: Convert to fraction form
93,312,496.80/139,968,745.20 = 80,547,415.20/x - Step 3: Cross multiply
93,312,496.80x = 139,968,745.20 × 80,547,415.20 - Step 4: Simplify right side
93,312,496.80x = 11,274,120,634,647,406 - Step 5: Solve for x
x = 11,274,120,634,647,406/93,312,496.80 - Step 6: Final answer
x = 120,821,122.80
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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.