Finding the Fourth Proportional to 90,618,853,286.52, 125,014,345,620.30 and 86,417,493,291
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Solution
The fourth proportional to 90,618,853,286.52, 125,014,345,620.30 and 86,417,493,291 is: 119,218,308,134.65
Step by Step Solution
- Step 1: Write the proportion equation
90,618,853,286.52 : 125,014,345,620.30 = 86,417,493,291 : x - Step 2: Convert to fraction form
90,618,853,286.52/125,014,345,620.30 = 86,417,493,291/x - Step 3: Cross multiply
90,618,853,286.52x = 125,014,345,620.30 × 86,417,493,291 - Step 4: Simplify right side
90,618,853,286.52x = 10,803,426,373,921,031,585,792 - Step 5: Solve for x
x = 10,803,426,373,921,031,585,792/90,618,853,286.52 - Step 6: Final answer
x = 119,218,308,134.65
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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.