Finding the Fourth Proportional to 93,312,107.70, 139,968,161.55 and 81,368,171.70
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Solution
The fourth proportional to 93,312,107.70, 139,968,161.55 and 81,368,171.70 is: 122,052,257.55
Step by Step Solution
- Step 1: Write the proportion equation
93,312,107.70 : 139,968,161.55 = 81,368,171.70 : x - Step 2: Convert to fraction form
93,312,107.70/139,968,161.55 = 81,368,171.70/x - Step 3: Cross multiply
93,312,107.70x = 139,968,161.55 × 81,368,171.70 - Step 4: Simplify right side
93,312,107.70x = 11,388,953,401,533,740 - Step 5: Solve for x
x = 11,388,953,401,533,740/93,312,107.70 - Step 6: Final answer
x = 122,052,257.55
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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.