Finding the Fourth Proportional to 65,239,986.70, 97,859,980.05 and 43,740,901.90
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Solution
The fourth proportional to 65,239,986.70, 97,859,980.05 and 43,740,901.90 is: 65,611,352.85
Step by Step Solution
- Step 1: Write the proportion equation
65,239,986.70 : 97,859,980.05 = 43,740,901.90 : x - Step 2: Convert to fraction form
65,239,986.70/97,859,980.05 = 43,740,901.90/x - Step 3: Cross multiply
65,239,986.70x = 97,859,980.05 × 43,740,901.90 - Step 4: Simplify right side
65,239,986.70x = 4,280,483,787,303,007 - Step 5: Solve for x
x = 4,280,483,787,303,007/65,239,986.70 - Step 6: Final answer
x = 65,611,352.85
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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.