Finding the Fourth Proportional to 3,779,238,923.80, 5,668,858,385.70 and 3,728,278,130.20
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Solution
The fourth proportional to 3,779,238,923.80, 5,668,858,385.70 and 3,728,278,130.20 is: 5,592,417,195.30
Step by Step Solution
- Step 1: Write the proportion equation
3,779,238,923.80 : 5,668,858,385.70 = 3,728,278,130.20 : x - Step 2: Convert to fraction form
3,779,238,923.80/5,668,858,385.70 = 3,728,278,130.20/x - Step 3: Cross multiply
3,779,238,923.80x = 5,668,858,385.70 × 3,728,278,130.20 - Step 4: Simplify right side
3,779,238,923.80x = 21,135,080,742,606,184,448 - Step 5: Solve for x
x = 21,135,080,742,606,184,448/3,779,238,923.80 - Step 6: Final answer
x = 5,592,417,195.30
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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.