Finding the Fourth Proportional to 135,157,917,013.63, 186,518,129,793.42 and 73,358,508,835.10
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Solution
The fourth proportional to 135,157,917,013.63, 186,518,129,793.42 and 73,358,508,835.10 is: 101,234,853,086.54
Step by Step Solution
- Step 1: Write the proportion equation
135,157,917,013.63 : 186,518,129,793.42 = 73,358,508,835.10 : x - Step 2: Convert to fraction form
135,157,917,013.63/186,518,129,793.42 = 73,358,508,835.10/x - Step 3: Cross multiply
135,157,917,013.63x = 186,518,129,793.42 × 73,358,508,835.10 - Step 4: Simplify right side
135,157,917,013.63x = 13,682,691,872,357,676,482,560 - Step 5: Solve for x
x = 13,682,691,872,357,676,482,560/135,157,917,013.63 - Step 6: Final answer
x = 101,234,853,086.54
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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.