Finding the Fourth Proportional to 7,079,623,263.75, 9,769,881,060.26 and 3,907,807,778.80
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Solution
The fourth proportional to 7,079,623,263.75, 9,769,881,060.26 and 3,907,807,778.80 is: 5,392,775,262.59
Step by Step Solution
- Step 1: Write the proportion equation
7,079,623,263.75 : 9,769,881,060.26 = 3,907,807,778.80 : x - Step 2: Convert to fraction form
7,079,623,263.75/9,769,881,060.26 = 3,907,807,778.80/x - Step 3: Cross multiply
7,079,623,263.75x = 9,769,881,060.26 × 3,907,807,778.80 - Step 4: Simplify right side
7,079,623,263.75x = 38,178,817,205,234,819,072 - Step 5: Solve for x
x = 38,178,817,205,234,819,072/7,079,623,263.75 - Step 6: Final answer
x = 5,392,775,262.59
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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.