Finding the Fourth Proportional to 7,140,598,207.09, 9,853,439,800.40 and 4,203,761,309.93
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Solution
The fourth proportional to 7,140,598,207.09, 9,853,439,800.40 and 4,203,761,309.93 is: 5,800,845,783.69
Step by Step Solution
- Step 1: Write the proportion equation
7,140,598,207.09 : 9,853,439,800.40 = 4,203,761,309.93 : x - Step 2: Convert to fraction form
7,140,598,207.09/9,853,439,800.40 = 4,203,761,309.93/x - Step 3: Cross multiply
7,140,598,207.09x = 9,853,439,800.40 × 4,203,761,309.93 - Step 4: Simplify right side
7,140,598,207.09x = 41,421,509,002,645,897,216 - Step 5: Solve for x
x = 41,421,509,002,645,897,216/7,140,598,207.09 - Step 6: Final answer
x = 5,800,845,783.69
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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.