Finding the Fourth Proportional to 13,048,128,121.80, 19,572,192,182.70 and 13,048,128,121.80
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Solution
The fourth proportional to 13,048,128,121.80, 19,572,192,182.70 and 13,048,128,121.80 is: 19,572,192,182.70
Step by Step Solution
- Step 1: Write the proportion equation
13,048,128,121.80 : 19,572,192,182.70 = 13,048,128,121.80 : x - Step 2: Convert to fraction form
13,048,128,121.80/19,572,192,182.70 = 13,048,128,121.80/x - Step 3: Cross multiply
13,048,128,121.80x = 19,572,192,182.70 × 13,048,128,121.80 - Step 4: Simplify right side
13,048,128,121.80x = 255,380,471,224,361,975,808 - Step 5: Solve for x
x = 255,380,471,224,361,975,808/13,048,128,121.80 - Step 6: Final answer
x = 19,572,192,182.70
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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.