Finding the Fourth Proportional to 7,775,509,728.79, 10,726,250,346.21 and 4,722,873,679.79
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Solution
The fourth proportional to 7,775,509,728.79, 10,726,250,346.21 and 4,722,873,679.79 is: 6,515,164,562.83
Step by Step Solution
- Step 1: Write the proportion equation
7,775,509,728.79 : 10,726,250,346.21 = 4,722,873,679.79 : x - Step 2: Convert to fraction form
7,775,509,728.79/10,726,250,346.21 = 4,722,873,679.79/x - Step 3: Cross multiply
7,775,509,728.79x = 10,726,250,346.21 × 4,722,873,679.79 - Step 4: Simplify right side
7,775,509,728.79x = 50,658,725,442,953,576,448 - Step 5: Solve for x
x = 50,658,725,442,953,576,448/7,775,509,728.79 - Step 6: Final answer
x = 6,515,164,562.83
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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.