Finding the Fourth Proportional to 76,031,999.70, 114,047,999.55 and 73,792,511.70
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Solution
The fourth proportional to 76,031,999.70, 114,047,999.55 and 73,792,511.70 is: 110,688,767.55
Step by Step Solution
- Step 1: Write the proportion equation
76,031,999.70 : 114,047,999.55 = 73,792,511.70 : x - Step 2: Convert to fraction form
76,031,999.70/114,047,999.55 = 73,792,511.70/x - Step 3: Cross multiply
76,031,999.70x = 114,047,999.55 × 73,792,511.70 - Step 4: Simplify right side
76,031,999.70x = 8,415,888,341,154,970 - Step 5: Solve for x
x = 8,415,888,341,154,970/76,031,999.70 - Step 6: Final answer
x = 110,688,767.55
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1.5x scale
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.