Finding the Fourth Proportional to 130,675,194.92, 195,520,289.70 and 77,957,909.84
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Solution
The fourth proportional to 130,675,194.92, 195,520,289.70 and 77,957,909.84 is: 116,643,048.63
Step by Step Solution
- Step 1: Write the proportion equation
130,675,194.92 : 195,520,289.70 = 77,957,909.84 : x - Step 2: Convert to fraction form
130,675,194.92/195,520,289.70 = 77,957,909.84/x - Step 3: Cross multiply
130,675,194.92x = 195,520,289.70 × 77,957,909.84 - Step 4: Simplify right side
130,675,194.92x = 15,242,353,116,323,280 - Step 5: Solve for x
x = 15,242,353,116,323,280/130,675,194.92 - Step 6: Final answer
x = 116,643,048.63
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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.