Finding the Fourth Proportional to 7,108,177,370.24, 9,809,593,118.19 and 3,936,361,287.20
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Solution
The fourth proportional to 7,108,177,370.24, 9,809,593,118.19 and 3,936,361,287.20 is: 5,432,349,332.65
Step by Step Solution
- Step 1: Write the proportion equation
7,108,177,370.24 : 9,809,593,118.19 = 3,936,361,287.20 : x - Step 2: Convert to fraction form
7,108,177,370.24/9,809,593,118.19 = 3,936,361,287.20/x - Step 3: Cross multiply
7,108,177,370.24x = 9,809,593,118.19 × 3,936,361,287.20 - Step 4: Simplify right side
7,108,177,370.24x = 38,614,102,593,577,607,168 - Step 5: Solve for x
x = 38,614,102,593,577,607,168/7,108,177,370.24 - Step 6: Final answer
x = 5,432,349,332.65
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.