Finding the Fourth Proportional to 320,020,201.80, 480,030,302.70 and 239,398,633.80
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Solution
The fourth proportional to 320,020,201.80, 480,030,302.70 and 239,398,633.80 is: 359,097,950.70
Step by Step Solution
- Step 1: Write the proportion equation
320,020,201.80 : 480,030,302.70 = 239,398,633.80 : x - Step 2: Convert to fraction form
320,020,201.80/480,030,302.70 = 239,398,633.80/x - Step 3: Cross multiply
320,020,201.80x = 480,030,302.70 × 239,398,633.80 - Step 4: Simplify right side
320,020,201.80x = 114,918,598,648,980,448 - Step 5: Solve for x
x = 114,918,598,648,980,448/320,020,201.80 - Step 6: Final answer
x = 359,097,950.70
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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.