Finding the Fourth Proportional to 528,768,007.80, 793,152,011.70 and 513,651,463.80
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Solution
The fourth proportional to 528,768,007.80, 793,152,011.70 and 513,651,463.80 is: 770,477,195.70
Step by Step Solution
- Step 1: Write the proportion equation
528,768,007.80 : 793,152,011.70 = 513,651,463.80 : x - Step 2: Convert to fraction form
528,768,007.80/793,152,011.70 = 513,651,463.80/x - Step 3: Cross multiply
528,768,007.80x = 793,152,011.70 × 513,651,463.80 - Step 4: Simplify right side
528,768,007.80x = 407,403,691,825,619,776 - Step 5: Solve for x
x = 407,403,691,825,619,776/528,768,007.80 - Step 6: Final answer
x = 770,477,195.70
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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.